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1,2-Dibromo-3-Butanone

    • Product Name 1,2-Dibromo-3-Butanone
    • Alias Bromoketone
    • Einecs 629-606-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    866175

    name 1,2-Dibromo-3-Butanone
    iupac_name 1,2-dibromobutan-3-one
    molecular_formula C4H6Br2O
    molecular_weight 241.90 g/mol
    cas_number 43144-39-0
    appearance Colorless to pale yellow liquid
    boiling_point No data available
    melting_point No data available
    density No data available
    solubility No data available
    smiles CC(=O)C(Br)CBr
    inchi InChI=1S/C4H6Br2O/c1-3(7)4(6)2-5/h4H,2H2,1H3
    flash_point No data available
    storage_conditions Store in a cool, dry, well-ventilated place

    As an accredited 1,2-Dibromo-3-Butanone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 100 mL, tightly sealed with a polypropylene cap and hazard label indicating flammable, toxic, and corrosive warnings.
    Shipping 1,2-Dibromo-3-butanone should be shipped as a hazardous chemical, in tightly sealed containers, suitable for corrosive and potentially toxic substances. Transport must comply with relevant regulations (e.g., DOT, IATA). Proper labeling, documentation, and secondary containment are required to ensure safety during shipment. Avoid contact with incompatible materials and extreme temperatures.
    Storage 1,2-Dibromo-3-butanone should be stored in a cool, dry, well-ventilated area away from sources of ignition and incompatible materials such as strong oxidizers and bases. Keep the container tightly closed, clearly labeled, and protected from direct sunlight. Use a corrosion-resistant container. Store in a designated area for hazardous chemicals, and ensure appropriate spill containment measures are in place.
    Application of 1,2-Dibromo-3-Butanone

    Applications of 1,2-Dibromo-3-Butanone in Industrial Manufacturing

    As a manufacturer specializing in 1,2-dibromo-3-butanone, we deliver high-purity raw materials to support complex industrial synthesis and formulation challenges. Our clients leverage this compound across advanced chemical sectors where compliance, precise dosage, and controlled reactivity are critical to both product performance and regulatory acceptance. Below are the principal industrial domains integrating this specialty chemical as a functional intermediate.

    1. Pharmaceutical Intermediate Synthesis

    The pharmaceutical sector uses 1,2-dibromo-3-butanone as a building block for the preparation of specialized heterocyclic scaffolds and as a halogenating reagent for active pharmaceutical ingredient (API) modification. Downstream clients employ it in multiphase organic synthesis, specifically for the manufacture of brominated intermediates forming the core of new chemical entities (NCEs). Synthesis runs under cGMP conditions, with strict validation of each processing step for batch consistency and impurity control. Our customers rely on lot traceability and analytical certificates that support regulatory filings and NDA submissions.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • 21 CFR Part 211 (US FDA cGMP for Finished Pharmaceuticals)
    • European Pharmacopoeia Monograph 5.12 (Impurity Control)
    • USP General Chapter <1045> Analysis of Organic Compounds

    Typical usage ratio

    • Typically 0.5–5 mol% relative to the core substrate, adjusted per synthetic route and yield optimization studies

    Downstream process integration

    • Introduced during early to mid-stage steps in multi-step organic synthesis, often under controlled temperature and inert atmosphere, followed by purification via recrystallization or chromatography

    Final product types

    • Brominated pharmaceutical intermediates
    • Specialty NCEs targeting CNS, oncology, and anti-infective drug classes
    • Pilot-scale and commercial API candidates

    2. Agrochemical Synthesis (Crop Protection Intermediates)

    In crop protection manufacturing, 1,2-dibromo-3-butanone provides a reactive bromination pathway for producing intermediates leading to the formation of various herbicides, fungicides, and insecticides. Its selectivity allows downstream users to achieve high yields on specific aliphatic and cyclic targets, especially for molecules where dipolar reactivity accelerates subsequent ring closure or elimination reactions. Formulators tightly monitor halogen and trace impurity content to ensure regulatory approval for environmental and agricultural applications.

    Industry compliance standards

    • FAO/WHO Specification for Pesticide Active Ingredients
    • EU Regulation (EC) No 1107/2009 (Plant Protection Products)
    • ISO 9001:2015 (Process Quality Management)
    • REACH Registration, Evaluation, Authorisation and Restriction of Chemicals (EU)

    Typical usage ratio

    • Applied at 1–4 molar equivalents to substrate, depending on desired halogenation level and downstream conversion requirements

    Downstream process integration

    • Added during controlled batch or continuous-flow halogenation reactions; typically followed by hydrolysis, cyclization, or condensation depending on target molecule

    Final product types

    • Brominated herbicide and fungicide precursors
    • Precursor solutions for insecticidal compounds
    • Intermediate stock for custom synthesis and contract manufacturing

    3. Specialty Polymer Modifier Manufacture

    Manufacturers in the advanced polymers sector utilize 1,2-dibromo-3-butanone as a monomer modifier for introducing bromo-functional groups into specialty resins and engineering plastics. These modified polymers demonstrate improved flame retardancy and reactivity for subsequent grafting or cross-linking, meeting demanding material performance requirements in automotive and electronics. Accurate metering ensures desired molecular weight and property control, reflecting tight process and QC oversight from raw material intake to extrusion or reactive compounding.

    Industry compliance standards

    • UL 94: Tests for Flammability of Plastic Materials
    • ISO 178 (Flexural Properties of Plastics)
    • RoHS (Restriction of Hazardous Substances in Electronics)
    • ISO 9001:2015 QMS for Polymer Manufacturing

    Typical usage ratio

    • Blended at 0.8–2.5 wt% depending on polymer resin type and targeted end-use flammability rating, confirmed by pre-production pilot trials

    Downstream process integration

    • Fed into polymerization reactors as a co-monomer or post-polymerization as a reactive modifier during melt blending or solution-phase modification

    Final product types

    • Flame-retardant ABS or polycarbonate resins
    • Bromo-functionalized engineering thermoplastics
    • Modified thermosetting resins for high-performance composites

    4. Fine Chemical Building Block for Flavor & Fragrance Intermediates

    Fine chemical producers employ 1,2-dibromo-3-butanone for synthesizing key intermediates used in the formulation of complex flavors and specialty aroma compounds. The material serves as a source of reactive bromo substituents, allowing selective construction of alicyclic and aromatic aldehydes and ketones, which downstream clients tailor for use in regulated food and fragrance markets. Production lines operate under food safety and ISO hygiene frameworks, with trace-level bromine monitoring throughout the blending and distillation sequences.

    Industry compliance standards

    • FEMA GRAS (Generally Recognized as Safe) Status for Flavor Ingredients
    • 21 CFR Part 172 (Food Additives Permitted for Direct Addition to Food for Human Consumption)
    • IFRA Code of Practice (International Fragrance Association)
    • ISO 22000:2018 (Food Safety Management Systems)

    Typical usage ratio

    • Range of 0.2–1.5 mol% in target synthetic sequences, fine-tuned based on regulatory thresholds and residual bromine content in the finished intermediate

    Downstream process integration

    • Charged into reaction vessels during aldehyde or ketone formation steps, followed by isolation and further refinement via distillation under reduced pressure to ensure purity

    Final product types

    • Key intermediates for flavor esters and aroma aldehydes
    • Precursor solutions for synthetic and natural-identical flavor blends
    • Certified food-grade and fragrance-grade chemical building blocks
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    Certification & Compliance
    More Introduction

    1,2-Dibromo-3-Butanone — Engineered by Hands-on Experience

    Introduction to a Distinct Chemical

    As a chemical manufacturer rooted in decades of production expertise, we look at each molecule as more than a number on a specification sheet. Our development of 1,2-Dibromo-3-Butanone comes from direct process refinement and continuous contact with laboratories and industrial partners who need reliability at scale. Chemists familiar with alpha-dicarbonyls and selectively halogenated ketones recognize the unique position 1,2-Dibromo-3-Butanone holds. Its molecular formula, C4H6Br2O, and structure set it apart from saturated or monohalogenated analogs. Requested by synthetic chemists, its reactivity profile opens doorways that simpler or more common chemicals do not.

    Production Quality and Traceability

    Bringing this compound from concept to drum requires rigor. We synthesize 1,2-Dibromo-3-Butanone through methods that limit by-products and avoid unwanted oligomerization. At each stage, our quality team uses gas chromatography and NMR spectroscopy to verify batch identity and purity. Our process stays attentive to the dangers of hydrolysis or unwanted oxidation, monitoring water content and maintaining low temperatures with careful solvent selection. By keeping records from raw material sourcing through final shipment, we support full traceability—a necessity when the end applications include pharmaceutical research or advanced materials development.

    Specifications That Matter

    From experience in pilot plants to full production lines, some factors become non-negotiable. Purity specifications above 97% by GC, colorless to pale yellow appearance, and tightly maintained batch-to-batch consistency are our benchmarks. Water content remains below 0.5%, critical for users avoiding side reactions. We monitor specific gravity and refractive index—real numbers, measured daily by staff committed to routine validation. Our chemists reject oversimplified “meets spec” statements in favor of providing actual analytical data with each lot, inspired by the realities seen on customer benches and reactors.

    Where 1,2-Dibromo-3-Butanone Redefines Application Boundaries

    Our clients drive the innovation behind this molecule’s use. In synthetic organic chemistry, its adjacent dibromo and ketone functionalities allow for nucleophilic attack, condensation, or cyclization pathways inaccessible to simple bromo ketones or monobromo derivatives. Groups working on heterocyclic scaffolds or pharmaceutical intermediates favor its selectivity. In the field of polymer modification, reactivity at both bromine sites enables stepwise transformation and block copolymer creation that mono-bromo or chloro analogues cannot mimic. In academic research, 1,2-Dibromo-3-Butanone acts as a model compound for studying halogen migration or exploring radical mechanisms, making it a staple for those elucidating new chemical principles.

    Comparing With Other Halogenated Ketones

    Many chemists ask about differences between this compound and the often-used 1-bromo-3-butanone, or even broader classes such as dibromoacetone. In our hands, reactivity, stability, and purification diverge as soon as you introduce the second bromine atom adjacent to the carbonyl. We see sharper selectivity in reactions targeting the dibromo positions. The molecule’s volatility is slightly reduced compared to lighter monobromo ketones, allowing safer handling in open vessels or less elaborate containment. While cost considerations exist (bromine is always a premium), we manage supply chain risks by sourcing elemental bromine and butanone at scale, ensuring reliability and price stability that smaller facilities struggle to match.

    Handling, Storage, and Direct Experience

    Working with halogenated ketones brings lessons we have learned firsthand. Our operators understand the irritation risks: bromine derivatives sting eyes and skin if left unchecked. By investing in upgraded ventilation, fume capture, and sealed handling, we limit exposure for both staff and product. We use high-density polyethylene and glass containers for storage, resisting any temptation for cost-cutting with incompatible plastics that can leach or degrade. Temperature control means storing this compound at cool yet non-freezing conditions—repeated freeze–thaw cycles damage product quality, something we uncovered through early missteps that we corrected before scaling up.

    Ensuring Low Residuals and Sustainable Processing

    As environmental and regulatory scrutiny grows, we carry the responsibility to minimize brominated by-products, vented volatiles, and organic waste streams. We have upgraded distillation columns and invested in closed-loop solvent recovery to curtail emissions. Testing for trace residues is routine—offering every customer a transparent look at the minor impurities and guaranteeing conformance to increasingly tight global standards. Our real-world data convince buyers (and regulators) more than any abstract assurance ever could. We pursue green chemistry improvements not for marketing compliance but because we see the consequences of ignoring them over years of operation.

    Choosing Between Alternatives—Why Focus on 1,2-Dibromo-3-Butanone

    Many research projects and industrial syntheses start with a search for alternatives. We appreciate the need for side-by-side evaluation—1,2-Dichloro-3-Butanone might seem cheaper, but our customers quickly discover that bromine’s leaving group ability shifts reaction pathways, offering milder conditions and higher selectivity. Where dihalo ketones with iodine perform too aggressively or cost too much, the dibromo compound finds the sweet spot. In pharmaceutical synthesis, certain regulatory filings call for precise process documentation. With our supply, customers benefit from transparent batch records and reproducible purity, supporting downstream compliance efforts in ways that ad hoc preparations or spot-market chemicals simply cannot deliver.

    Feedback From End Users Drives Our Process Innovation

    Real stories from partnering laboratories have helped shape our production philosophy. Early batches exposed the susceptibility of 1,2-Dibromo-3-Butanone to light-induced degradation—cloudiness and off-odors served as our wake-up call. We responded by switching to amber, light-blocking packaging and employing inert gas blanketing where possible. Regular feedback on ease of transfer, pouring, and sampling prompted us to offer both narrow- and wide-mouth vessels, pre-measured aliquots, and dedicated batch labeling. This direct dialogue with researchers and plant operators goes far beyond generic customer support—it turns process improvement into a daily practice, not a quarterly afterthought.

    Meeting Scalability and Lead Time Requirements

    Laboratory-scale synthesis delivers insight, but only robust production lines secure timely delivery. Our facility operates continuous flow reactors for key bromination steps, improving yield consistency over legacy batch processes. In working with industrial partners, we expanded reactor capacity and automated monitoring, reducing downtime after maintenance or raw material delays. We have learned the cost of unplanned outages, so redundancy and contingency planning are standards—supported by an in-house team who can troubleshoot and restart key operations. Customers depend on this reliability to reduce their own stockpiling, which translates to more efficient project planning on both sides.

    Worker and End-User Safety

    The people who manufacture, store, transport, and ultimately use 1,2-Dibromo-3-Butanone deserve more than generic warnings. Our staff undergoes targeted training based on real accident scenarios, not just paperwork compliance. We invest in in-line monitors for air quality and require personal protective equipment suited to halogenated organics. We track incident data and engage proactively with users about safe handling, spills, and emergency protocols, based on what our operators and neighbors have experienced across years of real-world exposure. Responsibility extends beyond factory walls; we believe in sharing lessons learned, not hiding them behind legal disclaimers.

    Reducing Downtime in User Operations

    Many users reported bottlenecks tied to waiting for custom synthesis batches or experiencing purity drift with resellers or third parties. By eliminating intermediaries and running onsite QC in parallel with production, we cut average fulfillment times—delivering product ready to run in analytical and synthetic reactions without recourse to lengthy in-house purification. We also keep extra analytical samples archived for multi-year traceability, a safeguard for long-term projects or regulatory audits that examine batch performance post-factum.

    Supporting Evolving Applications and Research

    This molecule continues to spur new questions. Some clients employ 1,2-Dibromo-3-Butanone as a key building block for complex heterocycles used in medicinal chemistry, while others test its reactivity profile as a probe for discovering new chemical mechanisms. University researchers looking to build a library of halogenated ketones appreciate the flexible ordering and technical engagement we offer—they receive more than a drum or bottle; they gain a partner willing to discuss yields, alternate synthetic pathways, and handling tips learned on our own lines. In industrial settings, our process flexibility means we can adjust order volumes quickly, supporting seasonal shifts or one-off research runs.

    Addressing Challenges Unique to Halogenated Ketones

    Halogenated ketones, particularly those with multiple bromines, challenge both equipment and personnel. The corrosive nature of bromine means valves and gaskets in our facility have to meet stricter material standards. Our experiences led us to upgrade to PTFE and certain stainless steel alloys, preventing downtime from material failure. Control over venting is tighter, with redundant scrubbers and automatic monitoring to prevent environmental violations. Storage requires ongoing monitoring for trace bromine release; we document and act on the data because we see the direct effect on worker comfort and product lifespan.

    Waste Management and Responsible Disposal

    Any production facility handling brominated compounds faces heightened scrutiny over waste. Our in-house treatment facility neutralizes mother liquors and process residues, with by-product recovery loops recapturing excess bromine for reuse. This practice was not adopted under pressure but grew from our own cost-saving and environmental observation. On request, we offer guidance to our customers about compliant disposal of small residues, providing waste collection options for higher-volume consumers needing documentation for internal and regulatory audits.

    Technical Documentation and Research Support

    Documentation must be more than a marketing tool. We provide spectral data and impurity profiles with every lot—not as a check-box exercise, but because our own lab partners demand it. Technical support comes from chemists who have run the material themselves, able to answer questions about side reactions, bulk compatibility, or by-product management. More than once, this sharing of hands-on observations has allowed customers to bypass costly troubleshooting or rethink a synthetic pathway for better outcomes. We believe robust documentation supports long-term confidence, reducing project risk for all parties.

    Confidential Customization and Joint Problem Solving

    Certain customer segments, especially in process development and specialty materials, require confidentiality and tailored approaches. With secure handling and NDA-compliant documentation, we quietly adapt our synthesis for unique impurity profiles or molecular isotopologues, supporting work that cannot tolerate disclosure of structures or production conditions. Our willingness to adjust procedures, not just batch size or container type, stems from 1,2-Dibromo-3-Butanone’s core value as a platform for innovation rather than a shelf-stable commodity. This technical agility draws on long-standing relationships and trust built through careful, transparent communication.

    Supply Chain Sustainability

    Ongoing disruptions challenge the entire chemical industry. Our early adaptation to closed, locally controlled supply lines for elemental bromine and base ketones has paid off: major shortages or price spikes have far less impact. By refining bromination and purification in-house, we bypass secondary handlers and mitigate geographic or logistical risk. This drives more stable lead times and lower price volatility compared to competitors dependent on intermediaries or spot purchases, delivering peace of mind to customers with narrow project windows or scale-up deadlines.

    Looking Forward With Transparency and Integrity

    This product exemplifies our belief that specialty chemicals can be delivered with openness and rigorous attention to each stage of manufacture. We build documentation and support on lessons from factory floors and laboratory benches, not from recycled product blurbs or marketing templates. The trust our customers place in us grows from years devoted to hands-on process improvement and the consistent willingness to admit shortcomings or to innovate in response to problems as they arise. Our responsibility extends beyond product boundaries to the communities—scientific, industrial, and human—involved in using 1,2-Dibromo-3-Butanone for discovery, production, and innovation.