4-Bromo-γ-Butyrolactone
Product Profile
Apply for Sample| Names | |
|---|---|
| Preferred IUPAC name | 4-Bromyloxolan-2-one |
| Other names | 4-Bromo-gamma-Butyrolactone 4-Bromobutan-4-olide 4-Bromobutyrolactone 4-Bromooxolan-2-one |
| Pronunciation | /ˈfɔːrˌbroʊmoʊˌˈɡæməˌbjuːtɪroʊˌlæktoʊn/ |
| Identifiers | |
| CAS Number | N |
| Beilstein Reference | 107247 |
| ChEBI | CHEBI:141109 |
| ChEMBL | CHEMBL3303127 |
| ChemSpider | 21476812 |
| DrugBank | DB01807 |
| ECHA InfoCard | 03a9e9d4-8972-454e-92ae-172f6f52aca6 |
| EC Number | 221-427-0 |
| Gmelin Reference | 78749 |
| KEGG | C14147 |
| MeSH | D017370 |
| PubChem CID | 177671 |
| RTECS number | KM5075000 |
| UNII | SO4IZ7A0QW |
| UN number | UN3271 |
| CompTox Dashboard (EPA) | 4-Bromo-gamma-Butyrolactone |
| Properties | |
| Chemical formula | C4H5BrO2 |
| Molar mass | 177.02 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | Sweet |
| Density | 1.660 g/mL at 25 °C (lit.) |
| Solubility in water | Slightly soluble |
| log P | 0.5 |
| Vapor pressure | 0.13 mmHg (25 °C) |
| Acidity (pKa) | 2.8 |
| Basicity (pKb) | pKb: 0.70 |
| Magnetic susceptibility (χ) | -68.0·10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.5100 |
| Viscosity | 30 mPa·s (20 °C) |
| Dipole moment | 2.77 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 370.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -471.7 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -2450 kJ·mol⁻¹ |
| Hazards | |
| Main hazards | Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H302, H315, H319, H335 |
| Precautionary statements | P261, P280, P305+P351+P338, P304+P340, P312 |
| Flash point | Flash point: 113°C |
| Lethal dose or concentration | LD₅₀ (oral, rat): 795 mg/kg |
| LD50 (median dose) | LD50 (median dose): 200 mg/kg (rat, oral) |
| NIOSH | BQ3970000 |
| PEL (Permissible) | Not established |
| REL (Recommended) | 0.1 ppm |
| Related compounds | |
| Related compounds | 2-Bromosuccinimide Gamma-Butyrolactone 4-Bromobutyric acid 4-Hydroxybutyric acid α-Bromolactone |
Chemical ID: CAS Formula HS Code Database
4-Bromo-γ-Butyrolactone: Product Identification
| Parameter | Details |
|---|---|
| Product Name | 4-Bromo-γ-Butyrolactone |
| IUPAC Name | 4-Bromotetrahydrofuran-2-one |
| Chemical Formula | C4H5BrO2 |
| CAS Registry Number | 5061-21-2 |
| Synonyms & Trade Names | 4-Bromobutyrolactone; 4-Bromo-2(3H)-furanone; β-Bromo-γ-butyrolactone |
| HS Code & Customs Classification | Most shipments using this lactone derivative refer to tariff classification under HS Code 2932.29, which covers lactones and their derivatives where brominated substituents fall under further subheadings. Precise sub-classification depends on import country rules and may link to “other lactones”. Border checks and customs interpretation depend on degree of bromination and local chemical control policies. |
Industrial Commentary
Chemical identification sets the base for all downstream matters, including compliance review, shipping, site validation, and internal tracking. 4-Bromo-γ-Butyrolactone, with its specific bromine substitution on the lactone ring, signals key points: raw material routes, process selection, control of halogen incorporation, and purification logic. For technical and regulatory functions, unambiguous identification by IUPAC and recognized synonyms reduces miscommunication between purchasing, formulation, and quality departments.
During actual manufacturing, selection of the brominated feedstock requires assessing the likelihood of side reactions, such as hydrolysis or over-bromination. In process, close attention is paid to capture and recycle unwanted organobromine or off-grade fractions, both for cost containment and waste compliance. HS Code assignment drives not just customs duties or tariffs but also triggers additional documentation and pre-shipment declarations, especially as brominated lactones may flag regulatory control, destination checks, or permit requirements. Manufacturing and shipping staff manage these points together to ensure uninterrupted order fulfillment.
Technical Properties, Manufacturing Process & Safety Guidelines: 4-Bromo-γ-Butyrolactone
Physical & Chemical Properties
Physical State & Appearance
Production-grade 4-Bromo-γ-butyrolactone typically appears as a clear to pale yellow liquid at ambient temperatures. Material color can shift slightly depending on lot history and purification strategy; excessive color often indicates degradation or incomplete purification. Odor is faint, sometimes slightly sweet or pungent, especially in open-air sampling. Careful temperature control during handling prevents product solidification—actual melting and boiling points fluctuate based on impurity profile and sample mass. Density displays some dependence on residual solvents or water content, which vary by downstream use and drying thoroughness.
Chemical Stability & Reactivity
4-Bromo-γ-butyrolactone will react with nucleophiles and is sensitive to strong bases and reducing agents. Extended exposure to basic conditions promotes ring opening and byproduct formation. Stability is best preserved in tightly sealed containers under inert atmosphere; oxygen and moisture accelerate hydrolysis and discoloration in partially finished or open storage. Storage protocols use dryness and darkness to mitigate reactive degradation and color shift.
Solubility & Solution Preparation
Solubility in water remains limited; organic solvents like dichloromethane, ether, and acetonitrile enable stock solution preparation. Residual moisture in solvents or sample diluents may drive ring hydrolysis. Solution concentration should follow downstream needs; solution stability varies by storage container, pH, and exposure time.
Technical Specifications & Quality Parameters
Specification Table by Grade
No single industry standard fits all application fields. Each grade demonstrates impurity, color, and moisture differences aligned with end-use—from analytical to industrial synthesis. Specifications are usually defined in collaboration with the customer’s regulatory and process requirements.
| Property | Industrial Grade | Research/High Purity |
|---|---|---|
| Assay | Typical values depend on grade | Higher minimum values, grade-defined |
| Color (APHA) | Varies by purification process | Low color preferred |
| Water content | Process-dependent | Tighter limits, as specified |
| Total impurities | Route- and batch-dependent | Lower limits specified by grade |
Impurity Profile & Limits
Bromide, unreacted lactone, and ring-opened acids arise from incomplete reaction or hydrolysis. Process water and solvent traces often show up in routine purity screening. Maximum allowed impurities are grade-specific, contractually defined, and analytically verified batchwise.
Test Methods & Standards
Analytical protocols rely on GC, HPLC, and titration for purity, residual solvent, and moisture quantification. Methods align with project requirements—ASTM, internal, or client-adopted standards direct batch release based on end use.
Preparation Methods & Manufacturing Process
Raw Materials & Sourcing
The production line feeds on γ-butyrolactone with brominating agents under monitored supply chain control. Upstream audit tracks bromine chain-of-custody, lactone origin, and carrier solvent quality. Selection logic balances cost, reactivity, toxicity, and downstream waste risk.
Synthesis Route & Reaction Mechanism
Direct bromination proceeds under controlled temperature. Selectivity for the γ-position requires careful feed rate and temperature management. Competing side reactions generate ring-opened or polybrominated impurities—precise stoichiometry and mixing suppress byproduct formation.
Process Control & Purification
Continuous process analytics track reactant feed, agitation, and exotherm. Phase separation removes excess brominating agent and inorganic salts. Crude is subjected to vacuum distillation, carbon filtration, or chromatographic polish depending on grade target and impurity composition. Water content and acid numbers serve as go/no-go indicators.
Quality Control & Batch Release
Final product release hinges on assay, color, and impurity clearance. Each batch review compares raw and finished lot data to established specifications. Certificates ship with all lots, as required by customer or regulatory bodies. Out-of-spec material triggers investigation and may go to reprocessing or technical disposal.
Chemical Reactions & Modification Potential
Typical Reactions
Alkylation, nucleophilic substitution, and reduction dominate follow-on chemistry for this intermediate. Epoxide opening and esterification reactions occur under defined conditions. Chemoselectivity is sensitive to base, solvent, and temperature controls.
Reaction Conditions
Choice of catalyst, solvent system, and temperature hinges on desired transformation. Base-mediated substitution runs at moderate to low temperature. Acidic or oxidative modifications may require stricter moisture control to avoid ring cleavage.
Derivatives & Downstream Products
Fine chemicals and agrochemical intermediates draw directly from this building block. Further functionalization depends on end-user requirements and process license. Downstream product release relies on knowledge of impurity carryover and byproduct risk.
Storage & Shelf Life
Storage Conditions
Best practice employs air-tight, light-blocking containers in dry, cool storerooms. Avoiding temperature cycling prevents condensation and water ingress. Inert gas padding is sometimes used, especially for research or high-purity lots. Exposure to humidity and heat triggers color change and odor development, indicating degradation.
Container Compatibility
Material shows compatibility with HDPE, glass, and lined steel. Some metal containers risk corrosion. Packaging selection follows material compatibility, lot size, transit, and storage period.
Shelf Life & Degradation Signs
Real shelf life depends on grade, packaging, and storage conditions. Color shift, precipitation, or pungent odor indicate degradation. Lot-specific expiry determination reflects customer requirements and internal studies, not fixed universal intervals.
Safety & Toxicity Profile
GHS Classification
Hazard class assignment follows actual test data and supplier chain disclosure. Manufacturer references the latest available SDS, incorporating regulatory updates and customer regions.
Hazard & Precautionary Statements
Product handling generates local irritation to eyes and skin. Aerosol formation presents inhalation hazard. Contact must be minimized, with direct exposure controls determined by operational risk assessment.
Toxicity Data
Toxicological data derive from animal studies and peer-reviewed risk assessments. Systemic toxicity, acute effects, and environmental persistence inform worker exposure guidelines and waste management procedures.
Exposure Limits & Handling
No fixed occupational exposure limits apply across all regions. Local regulation, application field, and process design set permissible exposure. Closed handling systems, point extraction, and personal protective equipment form the standard operational protocol. Training covers emergency spills, decontamination, and medical response routes.
4-Bromo-γ-Butyrolactone: Supply Capacity, Commercial Terms & 2026 Price Trend Forecast
Supply Capacity & Commercial Terms
Production Capacity & Availability
Production of 4-Bromo-γ-Butyrolactone relies primarily on bromination of γ-Butyrolactone using selective halogenation routes. Access to upstream chemicals—particularly bromine sources and high-purity γ-Butyrolactone—determines the baseline for plant output. In-house vertical integration and multi-step purification trains limit interruptions from spot shortages or quality deviations on incoming feedstocks. Output scheduling reflects real-time order commitments and contract supply agreements, especially where custom grade, packaging, or batch release testing applies.
Batch consistency management remains a core challenge in brominated lactone production. Yield and impurity profiles are acutely sensitive to temperature ramp rates, stoichiometric control, and water content in input glycols—factors which receive ongoing monitoring. Release criteria differ in response to customer requirements for residual bromide, hydrolytic stability, and color specification. Each grade’s availability fluctuates with production slotting and the parallel demand for core and specialty grades.
Lead Time & MOQ
Standard response lead times run from established inventory and recurring batch cycles. Custom or high-purity grades draw from queued made-to-order campaigns, which lengthen lead time, especially if interim stability, additional documentation or parallel impurity profiling is required. Minimum order quantities follow packaging lot sizes, contamination risk management, and transportation regulatory constraints. MOQ varies for industrial, pharma-intermediate, and research-grade specifications.
Packaging Options
Packaging selection links directly to product grade, expected shelf time, and regulatory requirements for handling and transport. Bulk chemical grades ship in lined steel drums or IBCs with tamper-evident closure. Higher-purity or moisture-sensitive cuts use smaller, sealed HDPE and fluoropolymer containers to prevent cross-contamination or degradation. UN-certified packaging is standard for international shipments.
Shipping & Payment Terms
Shipping options are tailored to hazard classification and destination. Most consignments dispatch under DAP or CIF incoterms to facilitate end-to-end chain of custody and customs entry. Wire transfer is the dominant payment term, with deferred payment or L/C considered for established multi-year contract partners. Export activity complies with local and international chemical shipment regulations, and pre-clearance documentation is mandatory for all restricted regions.
Pricing Structure & Influencing Factors
Raw Material Cost Composition & Fluctuation Causes
The core cost driver in 4-Bromo-γ-Butyrolactone is the price volatility of bromine and γ-Butyrolactone feedstocks. Global bromine supply shifts with changes in brine extraction economics, regional government extraction limits, and downstream demand, especially from flame retardant and pharmaceutical sectors. Seasonal and geopolitical factors also influence input material costs, pushing short-term price moves on the finished lactone. Energy costs—including process heating, chilling, and purification—affect overhead, particularly for high-purity batches.
Grade, purity, and regulatory certification play decisive roles in cost structure. Product price dispersion reflects the cost of additional purification, more frequent in-process analytical checks, and tailored documentation support. For regulated applications (API intermediates or high-end electronics), documentation packages and compliance with REACH, TSCA, or analogous frameworks add technical, administrative, and cost layers.
Product Price Difference Explanation
Grade differences—technical versus pharmaceutical or electronic—lead to pronounced price tiers due to batch segregation, additional filtration, and extended release analytics. Purity thresholds assigned by customer spec define yield loss and reworking cycles. Packaging influences cost per kg, with custom-size lots, special liners, or serialized tracking raising unit costs due to added material and labor. Certification—for hazardous goods, pharma intermediates, or environmental labeling—typically triggers extra release documentation, testing, and supply chain overhead, all impacting final price.
Global Market Analysis & Price Trends
Global Supply & Demand Overview
Production of 4-Bromo-γ-Butyrolactone clusters in regions with stable access to halogen sources and advanced fine chemical capacity, mainly East Asia and select sites in the EU and US. Demand moves tightly with trends in pharmaceuticals, agrochemicals, and specialty intermediates. Fluctuation in any feedstock market or regulatory intervention can tighten global supply, causing localized shortages in certain grades.
Key Economies Analysis
| Region | Production Logic | Demand Drivers | Market Constraints |
|---|---|---|---|
| US | Onsite bromine feedstock; compliance-driven capacity | Pharma, research intermediates, regulated manufacturing | Strict pre-shipment controls, TSCA compliance |
| EU | Multi-stage purification plants; stringent REACH filters | Specialty intermediates, environmental compliance | Stringent reporting, green labeling requirements |
| JP | Small-lot high-purity focus; captive and contract production | Electronics, advanced materials | High batch quality, supply chain traceability |
| IN | Low-cost bulk output; growing contract manufacturing | Generic APIs, agricultural chemicals | Chlorine/bromine supply stability, domestic regulation |
| CN | Distributed feedstock, large-scale output | Pharma, agro, industrial intermediates | Periodic environmental enforcement, export control |
2026 Price Trend Forecast
Supply-side pressures will depend on the stability of bromine and γ-Butyrolactone markets and the pace of new regulatory adoption for intermediate chemicals. Regulatory tightening, particularly in Asia and EU, will push demand for certified, traceable grades. Shifts in environmental compliance—especially focused on production emissions—could constrain manufacturing throughput, putting upward pressure on price for high-purity and specialty grades. Raw material cost swings, especially for bromine, remain the pivotal risk for price volatility. Most experts expect a moderate upward trend in overall market prices, though significant grade-based scatter will continue, with specialty documentation commanding premium pricing.
Data Sources & Methodology
Analysis draws on internal supplier purchasing records, customer sales data, and secondary tracking of bromine and lactone commodity indices. Industry news from chemical engineering forums and standard trade group outlooks inform updated regulatory and supply chain change estimates. Region-specific insights depend on local compliance reporting and shipping record analysis. Raw material pricing relies on direct purchasing data and global commodity bulletins.
Industry News & Regulatory Updates
Recent Market Developments
In the last year, several bromine extraction sites underwent scheduled and unscheduled shutdowns due to extreme weather and raw brine shortages. These disruptions produced noticeable short-term supply gaps in both upstream bromine and downstream brominated intermediates, including 4-Bromo-γ-Butyrolactone. Market participants adjusted offering terms, increased bid prices for off-campaign lots, and prioritized established customers over spot demand.
Regulatory Compliance Updates
Recent regulatory focus in both EU and China emphasizes traceability of brominated intermediates along the value chain. The rollout of digital compliance management and periodic audit programs increases process documentation and costs for certified grades. US authorities stiffened reporting requirements for intermediates with dual-use risk, further raising the documentation and tracking bar. New environmental guidance in China led to unplanned short-term production stops at multiple sites for emission inventory audits and upgrades.
Supplier Response & Mitigation
Producers responded with initiatives to tighten raw material qualification, centralize document management, and accelerate pre-shipment release analytics. Multi-site production diversification gained momentum, especially as regional export controls require site-specific compliance evidence. Supply contracts increasingly include escalation language on raw material cost sharing, and flexibility clauses for shift in regulatory documentation scope. Batch quality traceability and digital chain-of-custody tools are under wider internal deployment to keep pace with regulatory and end-user expectations.
Application Fields & Grade Selection Guide: 4-Bromo-γ-Butyrolactone
Application Fields & Grade Matching Guide
Industry Applications
4-Bromo-γ-Butyrolactone supports several distinct industrial roles, driven by its reactive lactone core and halogen functionality. In pharmaceutical intermediate synthesis, the molecule provides a building block for downstream functionalization steps, benefiting from reliable ring stability under controlled process conditions. Agrochemical formulators employ this compound when designing intermediates that require selective ring-opening or halogen-substitution chemistry. Specialty chemical firms leverage the compound's lactone for controlled polymerization or for synthesizing customized monomer units where exact halogen placement is necessary. Each of these sectors requires grades manufactured with differing tolerances for byproduct halolactones or unreacted starting materials.
Grade-to-Application Mapping
| Grade | Typical Applications | Key Selection Factors |
|---|---|---|
| Premium, Low-Impuirty Grade | Pharmaceutical intermediate, key starting material for API synthesis | Low residual solvents, minimized ring-opened impurities, validated process controls |
| Technical Grade | Agrochemical intermediate, industrial intermediates, research and development | Moderate impurity profile, higher process flexibility, batch consistency |
| Custom Purified Grade | Specialty synthesis projects, advanced material science research | Impurity profile tailored by manufacturing route, specification set with customer input |
Key Parameters by Application
For pharmaceutical routes, the primary parameter is trace impurity content—especially unreacted starting lactones, byproduct β-elimination species, and halide residues. These must be quantitatively certified for chain-of-custody compliance and regulatory filings. In agrochemical projects, broad-range batch reproducibility often outweighs ultra-high-purity, yet excessive ring-opened or polymeric byproducts must be minimized to prevent downstream interference. Specialty synthesis projects sometimes request custom release standards based on the targeted transformation—requiring detailed impurity profiling at each batch release. In all scenarios, moisture content and residual inorganic byproducts can influence downstream reactivity or formulation stability.
How to Select the Right Grade
Step 1: Define Application
Clarification between pharmaceutical, agrochemical, and custom synthesis use cases drives the first step. Each project’s process tolerance for impurities, as well as the importance of traceability and regulatory trackability, determines which grades qualify.
Step 2: Identify Regulatory Requirements
Pharmaceutical and many agrochemical end-uses place regulatory scrutiny on input materials. This guides grade selection—the manufacturer can support documentation and batch traceability to comply with GMP, REACH, or region-specific directives as required. Custom specifications may involve dual-release protocols, where each grade confirms compliance to both customer and regulatory standards.
Step 3: Evaluate Purity Needs
Some downstream processes exhibit sensitivity to specific impurities rather than absolute purity level. Pharmaceutical intermediates, for example, often require defined limits for each trace byproduct and solvent residue. By contrast, advanced materials projects can sometimes tolerate nominal impurity levels if critical byproducts do not react under subsequent process steps.
Step 4: Consider Volume & Budget
Large-volume buyers frequently prioritize value optimization, while research and process development teams may request laboratory-scale batches with custom-tailored profiles. The cost-to-volume ratio shifts depending on grade and batch frequency. Higher purity grades demand more extensive purification, impacting supply timelines and pricing.
Step 5: Request Sample for Validation
Before full-scale adoption, technical teams benefit from validating a supplier’s material under real-world process conditions. Samples allow direct assessment of performance, impurity carry-through, and compatibility with downstream unit operations. The manufacturer can offer supporting QC documentation and work collaboratively to adapt the grade where unique project requirements emerge.
Trust & Compliance: Quality Certifications & Procurement Support
Quality Compliance & Certifications
Quality Management Certifications
Our 4-Bromo-γ-Butyrolactone production aligns with rigorous quality management frameworks. Facility audits and third-party certification by recognized bodies have verified adherence to established ISO standards for quality management systems. The certification status covers manufacturing, warehousing, and shipment controls. Certificates are updated according to re-audit schedules, ensuring practices reflect current industry expectations for risk management, manufacturing traceability, and internal deviation reporting.
Product-Specific Certifications
Regulatory compliance is confirmed for each commercial consignment of 4-Bromo-γ-Butyrolactone, based on the intended use and relevant export/import controls. For customers operating in regulated industries such as pharmaceuticals, documentation can be provided detailing verification steps for critical quality attributes. For product grades destined for regions with specific registration demands, the certification package includes required conformity or pre-registration documents. Additional third-party product testing or legalized documents can be arranged according to contract.
Documentation & Reports
Each batch release is accompanied by a Certificate of Analysis referencing analytical methods validated for the production route and meeting customer reporting requirements. Detailed impurity profiling, stability data, and origin statements are available for qualified customers to support audit or dossier preparation. The content of quality documentation reflects reference methods, technical grade distinctions, and end-use specifications. Ongoing updates to method validation and lot release protocols are maintained through an internal audit cycle and feedback from key industry partners.
Purchase Cooperation Instructions
Stable Production Capacity Supply and Flexible Business Cooperation Plan
Production scheduling for 4-Bromo-γ-Butyrolactone integrates forecast signals from established off-take agreements and spot inquiries. Facilities hold capacity and buffer inventory based on quarterly demand cycles, raw material market conditions, and historical consumption patterns. The cooperation plan can include contract manufacturing, tolling, or exclusive supply under technically-supported minimum volume agreements. Each mode of business cooperation is tailored in negotiation, balancing customer demand profiles with factory capacity planning.
Core Production Capacity and Stable Supply Capability
Process optimization and risk mitigation protocols support the transition from pilot to sustained production campaigns. Core capacity leverages both dedicated and multi-purpose reactors, with raw material qualification and in-process analytics ensuring lot-to-lot reproducibility. Back-up supply strategies can be activated in event of plant maintenance or logistics disruptions, with notification protocols transparently communicated. Forward integration into packaging and dispatch supports project-specific delivery frequencies, from drums to bulk shipments according to requirements.
Sample Application Process
Sample requests trigger a technical review of application background, target grade, and immediate regulatory or analytical needs. Distribution of samples follows internal chain-of-custody documentation, with COA and MSDS typically provided to help downstream user qualification. Sample volumes and form (solid/liquid; packaging type) are tailored to customer lab and pilot process needs. Pre-shipment evaluation of target grade availability ensures relevance to customer R&D or scale-up programs.
Detailed Explanation of Flexible Cooperation Mode
Business relationships often begin with small volume supply, project-specific technical discussions, and ongoing feedback loops. Transitioning to annual contracts or spot purchase models can proceed based on technical validation, compliance review, and risk evaluation at both manufacturer and client levels. Adjustment terms for pricing, volume, or delivery timing are embedded in agreement frameworks that reflect underlying production realities—such as raw material lead times, impurity control targets, and potential market fluctuations. Framework agreements are revisited in response to regulatory changes or major supply chain events, with customer input guiding any process modifications.
Market Forecast & Technical Support System for 4-Bromo-γ-Butyrolactone
Research & Development Trends
Current R&D Hotspots
Production departments track the growing interest in 4-bromo-γ-butyrolactone, especially in targeted syntheses of heterocyclic intermediates and as a building block for specialty agrochemical and pharmaceutical projects. Research teams see a continued shift toward lower-impurity grades, with every batch’s impurity profile scrutinized for residue control to enable consistent downstream reaction yield. Compared to the last five years, specifications setting even narrower impurity windows reflect evolving end-user process sensitivities.
Technical teams receive more custom-synthesis requests for route-adaptable grades, supporting projects that may need halogen exchange, lactone ring modification, or secondary transformation directly off the bromo-lactone backbone. These requirements drive closer collaboration between R&D, QC, and end-user pilot labs, aiming for lot-specific documentation and traceability.
Emerging Applications
Pharmaceutical process development, particularly for high-throughput screening of custom α-bromo intermediates, accounts for a growing share of demand. The demand for 4-bromo-γ-butyrolactone in lithium battery electrolyte additives is under technical review; cycle reliability and long-term stability become the points of investigation in these new applications. In crop protection, formulators seek tailored impurity patterns to match regulatory submission needs, which feeds back into grading practices at the manufacturing level.
Technical Challenges & Breakthroughs
Raw materials sourcing exerts direct influence on hydrolytic impurity carry-over and color stability. Selecting high-purity precursors and precise bromination conditions reduces halide-derived byproducts, but pushes solvents and process aids closer to detection limits. Balancing between batch and continuous processing impacts both cost and reproducibility: continuous routes give better profile control but require capital upgrades and skilled engineering talent.
Achieving pharma-grade color and clarity imposes rigorous filtration and polishing steps. Breakthroughs in solid-phase scavenging and online impurity monitors have started to stabilize product quality lot-to-lot, supporting stricter downstream QC. Persistent challenges include controlling moisture uptake during transfer and secondary reactivity under ambient storage, particularly where containers transit variable climates.
Future Outlook
Market Forecast (3-5 Years)
Projected demand for 4-bromo-γ-butyrolactone clusters into two segments: pharmaceutical intermediates and specialty fine chemical synthesis. The growth trajectory tracks global clinical project investments and regulatory shifts in allowable impurity limits. Some market consolidation is visible, with producers scaling up larger single-site campaigns to preserve batch uniformity for clients requiring multi-ton volumes. Lower-volume, specialty application-tier still prefers batch-origin traceability and strict retain sample management as part of acceptance protocols.
Technological Evolution
Manufacturers invest in integrated DCS (Distributed Control System) process lines to better document and manage real-time process drift and off-spec generation. Upgrades in in-line analytical tools, such as NMR and GC-MS, push earlier detection of off-target species, containing rework costs. Grade stratification based on application needs—rather than bulk one-size-fits-all plans—sets the direction for future product launches. Technical, QC, and R&D teams monitor international regulatory moves; adaptation of protocols keeps certification pathways open and risk-managed.
Sustainability & Green Chemistry
Attention to solvent recycling rate and bromide management grows. Facilities push to reclaim bromine during the reaction/work-up, balancing effective separation against operational safety and regulatory waste limits. Moves toward greener process aids, including biodegradable solvents or limiting excess halogen, are under technical evaluation, dictated by both cost and downstream residue impact. Raw material audits and in-plant wastewater treatment coordination shape the overall sustainability program; raw material traceability certification becomes part of customer reporting, influencing supplier choice.
Technical Support & After-Sales Service
Technical Consultation
Application chemists provide direct consultation on grade selection, reaction compatibility, and downstream process design. For pharmaceutical clients, consultation often covers impurity fate mapping, reactivity in multi-step synthesis, and filtration/solid-handling protocols to prevent batch loss. For battery or agrochemical innovators, technical dialogues revolve around solubility, phase behavior, and stability under fielded storage conditions.
Application Optimization Support
Once QC signs off on new or custom tailored grades, technical teams participate in pilot scale-up and validation. Support involves collaborative troubleshooting—working through pH, water content, and minor impurity adjustment based on the client’s process trial feedback. Where required, lot-specific COAs (certificate of analysis) and expanded analytical support are provided, reflecting both production scale and regional regulatory analysis needs. Feedback loops between application labs and production units accelerate grade refinement, ensuring mutual benefit and technical closure.
After-Sales Commitment
After delivery, the role continues with storage and requalification protocols, advice on container type (drums, IBCs, dedicated tanks), and incident management—such as advice on transfer loss, premature color change, or unexpected reactivity. Commitment extends to batch recall support, lot traceability reports, and, when needed, secondary analysis or re-blending. This reduces supply chain risk and ensures technical confidence for users in critical downstream integration.
4-Bromo-γ-Butyrolactone: A Reliable Solution for Advanced Synthesis
Our Direct Production Approach
We run our manufacturing lines for 4-Bromo-γ-Butyrolactone with full oversight, from raw material input through final delivery. Each batch leaves our reactors under strict temperature and atmospheric controls, targeting the exact purity and reactivity profiles demanded for large-scale synthesis. This approach cuts out supply chain guesswork so commercial buyers can plan confidently for every campaign and downstream requirement.
Key Applications in Industry
4-Bromo-γ-Butyrolactone holds a place in advanced synthesis, especially for intermediates in the pharmaceutical and agrochemical sectors. Contract manufacturers employ it for active ingredient development and process chemists use it in route optimization. Its structure enables targeted bromination and lactone functionality, supporting the assembly of bespoke molecules used in high-value end products.
Commercial pigment and polymer plants rely on stable batches to ensure consistency from lab to pilot to full production. Controlled bromination supports reproducible molecular scaffolds, streamlining validation and scale-up cycles for new launches.
Quality Assurance Throughout Production
We maintain quality at every stage using in-line process analytics and bench-top batch analysis, including NMR and GC-MS. Each lot is certified internally against established benchmarks. Production records remain traceable for every shipment, enabling detailed reconciliation of any technical query. Inspection, filling, and sampling take place under standardized protocols in dedicated workspaces to rule out cross-contamination.
Consistent Packaging and Reliable Supply
We package 4-Bromo-γ-Butyrolactone in HDPE drums or stainless containers, meeting the needs of bulk handlers and process plants. Material comes sealed and verified to prevent exposure and preserve integrity during transport. Our logistics team coordinates safe loading and timely handoff for both regional and export clients. Tracking extends from warehouse to consignee, minimizing delays and providing real-time information on order status.
Direct Technical Support for Industrial Customers
Development teams can discuss process compatibility and performance targets directly with our plant chemists. We support protocol optimization, pilot trial feeding, and help troubleshoot analytical deviations. Custom documentation and technical dossiers share learnings from our synthesis experience, supporting both rapid integration and regulatory review.
Business Value for Procurement and Manufacturers
By controlling all production and packaging steps in-house, we help manufacturers cut risk from supply interruptions, lot variability, and customs hold-ups. Our clients benefit from stable scheduling, transparent pricing, and strong technical backup, whether sourcing for ongoing campaigns or project-driven demand spikes. Distributors gain from steady batch quality and predictable inventory flows, supporting strong commitments to their own buyers.
Procurement teams find planning easier with clear specifications attached to each release and project managers can work directly with the plant to align order sizes or special packing needs. Through stable process management and strong technical support, we add predictable business value across all segments of the advanced chemical supply chain.
Industrial FAQ
What are the typical purity specifications and analytical methods used to characterize 4-Bromo-γ-Butyrolactone?
As a manufacturer of 4-Bromo-γ-Butyrolactone, we understand that the integrity of downstream applications rests on rigorous purity control and reliable analysis. Our production line is geared to address both technical requirements and safety expectations, so we set strict benchmarks and deploy proven analytical protocols for every batch.
Typical Purity Specifications
Standard chemical markets expect high purity when sourcing intermediates like 4-Bromo-γ-Butyrolactone. In our facility, we routinely deliver material with a chemical purity of at least 98% by weight, determined by industry-accepted methods. The content and allowable impurity ranges are not arbitrary; they are defined based on customer feedback and functional needs. Alongside purity, we monitor moisture content and residual solvents, both of which can affect both reactivity and storage stability. Most users working on fine chemical synthesis or pharmaceutical research express concern over even minor trace impurities, so our specifications reflect that.
Analytical Methods Used in Our Lab
Our technical team relies on a set of instrumental techniques that have been validated through years of practical manufacturing experience. High-performance liquid chromatography (HPLC) forms the backbone of our purity analysis. HPLC allows rapid and precise quantification of the main compound and any process-related byproducts. For 4-Bromo-γ-Butyrolactone, we choose carefully matched columns and detection wavelengths, building on tried-and-tested method development.
We supplement HPLC with gas chromatography (GC) when volatility and thermal stability permit. GC helps track volatile organic compounds and determines if the manufacturing system has introduced unwanted solvent residues. For structural confirmation, nuclear magnetic resonance (NMR) spectroscopy provides additional confidence. NMR can detect byproducts or accidental isomers that could be missed in a single-run chromatographic scan. We keep representative NMR data on file for each lot, so we can answer technical queries immediately when customers require added documentation.
Depending on process complexity or specific customer projects, we may also generate supporting mass spectrometry (MS) data or infrared (IR) spectra. These are not everyday tools for routine QC but come into play in troubleshooting or for high-profile supply contracts where detailed documentation builds trust.
Reliable Quality Starts at Production
Analytical rigor alone never compensates for poor process discipline. Our operations team oversees each batch from raw material testing through final filtration and drying. In-line sampling during synthesis highlights potential deviations before the product leaves the reactor. Each bulk drum ships with a certificate of analysis outlining all measured parameters—chemical identification, purity, water content, and residual solvent levels—along with the relevant batch number.
We know our end-users expect more than a piece of paper; they want robust, repeatable results. We back our claims with open technical dialogue and years of accumulated analytical data. Our standard packaging is selected to prevent moisture ingress and contamination throughout the supply chain, complementing the efforts of our laboratory technicians.
Continuous Process Improvement
We approach every customer query as a chance to benchmark and, where possible, fine-tune our practices. Feedback helps us improve both production consistency and analytical depth. Regulatory shifts and new market demands shape how we monitor for trace impurities or refine our purification strategies. As production-scale chemists, we take pride in delivering a dependable intermediate—one that stands up to scrutiny from both commercial and technical users alike.
What packaging sizes are available for bulk procurement of 4-Bromo-γ-Butyrolactone and what are the lead times?
Real-World Choices in Bulk Packaging
As a direct manufacturer of 4-Bromo-γ-Butyrolactone, our focus remains on quality, safe handling, and reliable supply. Packaging options influence not only transportation costs but also ease of storage and workplace safety. Our standard bulk packaging for industrial procurement includes UN-approved drums—200-liter HDPE drums offer robust chemical compatibility and optimized space efficiency. For larger volume schedules, we offer 1,000-liter Intermediate Bulk Containers (IBCs). Experience shows IBCs suit centralized warehousing and high-throughput processes, while drums prove beneficial for staged or distributed consumption across multiple locations. These formats have become an industry mainstay due to consistent regulatory compliance and cost-effective delivery.
Drum openings use tamper-evident seals and HDPE liners to preserve product integrity throughout transit. We rigorously inspect all outgoing containers under ISO protocols and batch-retain production samples for six months to help clients troubleshoot anomalies should they occur. Smaller pilot-scale quantities often ship in 25-liter kegs with similar safeguards. Repacking into non-standard sizes increases risk of contamination and complicates chain-of-custody documentation, so we recommend limiting such requests unless absolutely necessary for your application.
Lead Time Management From a Producer’s Perspective
Lead times matter most when projects are running on tight schedules. For established customers with an open account, we place orders into our rolling production schedule with typical turnarounds of 7-14 days for drum or IBC shipments. For new partnerships, initial lead times can extend by a week due to onboarding, regulatory due diligence, and contract review. Shipping to North America or Europe from our primary plants adds 4-6 weeks by sea freight, depending on seasonal congestion. Airfreight for smaller consignments will always offer faster arrival but drives up landed cost.
Unexpected surges in global demand or upstream shortages impact all chemical manufacturers. To mitigate interruptions, we maintain safety stocks of core intermediates and conduct quarterly risk assessments in our supply chain. Our logistics division continuously evaluates route reliability and investigates bottlenecks that can delay customs clearance for hazardous chemicals such as 4-Bromo-γ-Butyrolactone. We never release goods without the required documentation, permits, and packaging compliance, since shortcuts here expose both us and our clients to unacceptable regulatory and operational risks.
Supporting Your Bulk Procurement Strategy
Choosing the right packaging size goes beyond just liquid volume; it’s about optimizing your material flow, minimizing product loss, staying compliant, and ensuring transport safety. By anchoring our offer around established industry containers, we simplify your downstream planning, allow easy integration into automated handling systems, and minimize exposure during product transfer. Our technical team reviews all bulk orders for compatibility with your facility and works with you to schedule shipments that dovetail with your consumption rates—avoiding both stockouts and costly overstocking.
We remain committed to manufacturing excellence, transparency, and long-term supply chain resilience. By offering practical packaging and forthright lead time guidance, we help industrial partners safeguard operational continuity and maximize return on investment in chemical procurement.
Are there any specific shipping restrictions or regulatory compliance requirements for international transport of 4-Bromo-γ-Butyrolactone?
Real-world Compliance from Our Factory Floor
Shipping 4-Bromo-γ-Butyrolactone across international borders adds complexity beyond routine logistics. As a direct manufacturer, we track regulatory expectations from production all the way to global end use. Authorities worldwide scrutinize lactone derivatives, especially those with potential pharmaceutical or precursor application. Our entire packaging, labeling, and shipping workflow orients toward compliance at every step.
Classification and Regulatory Frameworks
4-Bromo-γ-Butyrolactone draws regulatory attention from groups like the UN, EU, US DEA, China’s MPS, and other national drug-control agencies. Classification can shift on an annual basis, reflecting the substance’s potential for diversion. Even small amounts often fall under licensing and permit rules. For example, the US lists substances with structural similarity to controlled GBL among "listed chemicals" if diversion risk exists. Several EU member states refer to the European Monitoring Centre guidelines during import reviews. Our documentation details chemical structure and intended use, providing clarity for customs inspection.
Packaging and Transportation as Required by Law
We ship 4-Bromo-γ-Butyrolactone in heavy-duty, tamper-evident polyethylene drums with overwrap for added protection. All containers carry UN-compliant labeling under the latest GHS rules, with multilingual information and QR-coded traceability. Every drum includes batch numbers connected directly to our internal production records. Our logistics staff verify MSDS inclusion, and double-check that all export documents match the technical characteristics of the consignment—avoiding unnecessary border delays and inspection holds. The product regularly travels by certified DG (dangerous goods) carriers, fully licensed to handle this substance.
Paper Trail and Record Keeping
Exporting to regions such as the EU, North America, or East Asia, our compliance team prepares certificates of analysis, manufacturing origin, and every license or permit required for legal transfer. Inbound customer documentation must verify both end-use and entity legitimacy—routine for regulatory audits in sensitive chemical categories. We utilize blockchain-based digital ledgers to log every batch movement from synthesis to customs clearance, ensuring real-time tracking and accountability.
Real Risk: Why Adherence Matters
Non-compliance creates direct risk not just for shipment rejection, but for full regulatory investigation, product seizure, and company blacklisting. We have seen exporters sidelined by regulators for incomplete documents or misdeclared product composition. Unlabeled drums can trigger destructive testing orders and weeks-long delays. For these reasons, every technical manager on our export desk undergoes annual compliance certification, including the latest anti-diversion, anti-money laundering, and export control training modules. This proactive compliance culture matches the risk profile of 4-Bromo-γ-Butyrolactone as a monitored intermediate worldwide.
Solutions from Experience
Our technical team maintains a direct line to local customs advisory bureaus and regularly updates shipping protocols when international agreements evolve. Whenever new regulatory clarifications emerge, we implement batch-specific adjustments immediately at the production line. For long-term customers, we establish advance notice programs and document packet templates for each destination country. If rules for a given region become unclear or more restrictive, we slow release schedules and only ship after direct regulatory confirmation. Years of direct manufacturing experience have shown that neglecting to follow the letter and spirit of international compliance rules carries unacceptable risk, both for product integrity and for the business itself.
Technical Support & Inquiry
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales3@ascent-chem.com, +8615365186327 or WhatsApp: +8615365186327