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4'-Bromovalerophenone

    • Product Name 4'-Bromovalerophenone
    • Einecs 214-588-9
    • 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

    832389

    Iupac Name 1-(4-Bromophenyl)pentan-1-one
    Cas Number 49851-31-2
    Molecular Formula C11H13BrO
    Molecular Weight 241.13 g/mol
    Appearance Colorless to pale yellow liquid
    Boiling Point 313.9°C at 760 mmHg
    Melting Point N/A (liquid at room temperature)
    Density 1.31 g/cm³
    Solubility Slightly soluble in water, soluble in organic solvents
    Smiles CCCCC(=O)C1=CC=C(C=C1)Br

    As an accredited 4'-Bromovalerophenone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 4'-Bromovalerophenone is packaged in a 25-gram amber glass bottle with a secure screw cap and hazard labeling.
    Shipping 4'-Bromovalerophenone is shipped in securely sealed containers to prevent leaks or contamination. The packaging complies with regulations for hazardous materials, including robust outer packaging and clear labeling. Shipping is typically conducted via ground or air freight, depending on destination, with all necessary safety documentation and handling instructions included to ensure safe delivery.
    Storage 4'-Bromovalerophenone should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances like strong oxidizers. Keep it away from direct sunlight, heat, and ignition sources. Store under inert gas if recommended and ensure that the storage area is equipped with proper spill containment measures. Always follow safety guidelines and label containers clearly.
    Application of 4'-Bromovalerophenone

    Applications of 4'-Bromovalerophenone in Industrial Manufacturing

    4'-Bromovalerophenone is widely utilized as a fine chemical intermediate in regulated sectors. Below we outline core application scenarios, practical processing guidance, and product pathways for key industries actively sourcing this raw material in compliance-driven production environments.

    1. Pharmaceutical Active Ingredient Synthesis

    This intermediate is essential in the synthesis of several regulated active pharmaceutical ingredients, particularly in the development of anticonvulsants and other targeted therapies. Pharmaceutical manufacturers employ it as a building block in stepwise chemical incorporation, optimizing yield and purity through managed halogenation and alkylation protocols. Strict batch records, validated processing parameters, and comprehensive analytical controls govern the entire conversion process to ensure traceable and compliant outputs.

    Industry compliance standards

    • USP (United States Pharmacopeia) specifications for starting materials
    • ICH Q7 GMP regulations for APIs
    • FDA 21 CFR Part 210/211 for pharmaceutical manufacturing
    • European Pharmacopoeia (Ph. Eur.) standards

    Typical usage ratio

    • Utilized at concentrations of 0.5–2.0 molar equivalents per API batch, with adjustments based on stoichiometric requirements and process yield optimization

    Downstream process integration

    • Fed into the initial condensation or alkylation stage of API synthesis, followed by controlled halogen displacement and purification steps

    Final product types

    • Anticonvulsant drug substances (e.g., certain phenylpentanone derivatives)
    • Clinical research chemicals
    • Reference standards for pharmaceutical analysis

    2. Agrochemical Intermediate Manufacturing

    Key crop protection companies use this raw material in producing selective herbicides and growth regulators. It enters the agrochemical supply chain as a structurally specific precursor, participating in controlled Friedel–Crafts acylation and subsequent functional group transformations. Quality management systems require in-process control of halogen content and trace by-products for regulatory certificates and product stewardship documentation.

    Industry compliance standards

    • FAO/WHO specification for pesticide manufacturing
    • REACH (EC 1907/2006) registration requirements
    • ISO 9001:2015 certified quality systems
    • OECD guidelines for chemical testing

    Typical usage ratio

    • 1.0–1.5 molar equivalents per target agrochemical molecule; operators adjust ratios based on conversion rate and impurity profile

    Downstream process integration

    • Introduced during the primary ring acylation or side-chain extension stage in multi-step agrochemical formulations

    Final product types

    • Herbicide active ingredients (e.g., substituted valerophenones)
    • Plant growth regulator intermediates
    • Analytical reference materials for environmental monitoring

    3. Fine Chemical and Fragrance Synthesis

    This compound serves as a pivotal intermediate for specialty chemicals in the aroma and flavor sector, particularly during proprietary synthesis of musk and woody note molecules. Downstream producers integrate it into catalytic hydrogenation or further bromination, utilizing it for customized molecule design. Comprehensive traceability, allergen screening, and low-impurity specifications are mandated for downstream consumer safety.

    Industry compliance standards

    • IFRA (International Fragrance Association) guidelines
    • CosIng ingredient standards (EU Cosmetics Regulation EC 1223/2009)
    • ISO 22716 GMP for cosmetic raw materials
    • Allergen declaration based on Regulation (EC) No. 648/2004

    Typical usage ratio

    • Applied at 0.3–1.0 molar ratio per synthetic musk or aromatic ester; batch optimization based on final note profile

    Downstream process integration

    • Reacted during the early ring modification stage in multi-phase fragrance synthesis, followed by purification and formulation to meet specific olfactory compositions

    Final product types

    • Synthetic musk bases
    • Woody and spicy fragrance molecules
    • Cosmetic-grade aroma chemicals

    4. Specialty Polymer Research and Development

    Polymer labs and specialty material firms deploy this molecule as a functional monomer precursor during the synthesis of high-performance resins and copolymers with halogenated side chains. Integrating it allows downstream engineers to adjust polymer reactivity, solubility, and physical barrier properties. Strict adherence to chemical registration, toxicological risk assessment, and full-lifecycle monitoring underpins its use in this setting.

    Industry compliance standards

    • OECD Good Laboratory Practice (GLP)
    • REACH Annex VII–X registration protocols for new polymer substances
    • ISO 14001 environmental management systems
    • GHS hazard classification protocols

    Typical usage ratio

    • Utilized at 0.1–0.4 mole fraction as a chain-modifying co-monomer or grafting initiator, with load levels selected according to targeted polymer architecture

    Downstream process integration

    • Fed into the copolymerization or grafting reactor during the monomer mixing phase, followed by thermal or photoinitiated polymer buildup

    Final product types

    • Halogenated acrylic resins
    • Engineering thermoplastics with enhanced flame retardance
    • Coatings and films for industrial application

    5. Laboratory Reagent for Analytical Chemistry

    Certified chemical laboratories and analytical service providers use this raw material as a reference reagent for method validation, qualitative analysis, and impurity profiling. Laboratories purchase and ship under chain-of-custody procedures and adhere to stringent storage, documentation, and analytical protocols set by international and national authorities. Material purity and certificate of analysis traceability are prime factors driving procurement and handling.

    Industry compliance standards

    • ISO/IEC 17025 for laboratory competence
    • AOAC International method validations
    • IUPAC chemical nomenclature and documentation standards
    • GHS labeling for chemical reagents

    Typical usage ratio

    • Measured out at microgram-to-milligram levels per analytical batch, scaling according to detection sensitivity and calibration curve requirements

    Downstream process integration

    • Employed in the sample preparation and method validation stages, especially in GC-MS and HPLC reference testing

    Final product types

    • Certified reference materials
    • Analytical standards for residue and impurity quantification
    • Calibration mixtures for chromatographic systems
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    Certification & Compliance
    More Introduction

    4'-Bromovalerophenone: A Practical Perspective from the Manufacturer

    Understanding 4'-Bromovalerophenone and Its Place in the Industry

    In our facility, we have dedicated ourselves to producing a consistent and reliable supply of 4'-Bromovalerophenone, putting years of technical know-how and industrial discipline into every batch. This compound, known for its distinct structural features as 1-(4-bromophenyl)-1-pentanone, serves as an essential building block for a variety of chemical and pharmaceutical projects. The value of this compound shows itself not only in its chemical reactivity but also in the expectations it sets for material consistency.

    Working with 4'-Bromovalerophenone, or 4-bromo-α-pentanone, involves a commitment to processes that minimize impurities. Every stage of manufacture, from raw material selection to final filtration and packaging, shapes the outcome of the final product. In our experience, purity and repeatability represent more than abstract goals. Our team manages the precise environment needed, routinely verifying our synthesis protocols using GC and NMR analysis. Most often, our product achieves a chemical purity above 98%, responding to the requirements of demanding applications in organic synthesis.

    The Compound in Context: What Sets 4'-Bromovalerophenone Apart

    Our industry has no shortage of aromatic ketones, but a key feature of 4'-Bromovalerophenone is its para-bromine substitution. The presence of the bromine atom at the para-position of the phenyl ring enhances its reactivity profile for cross-coupling reactions and downstream modifications. Customers often ask about using this compound over plain valerophenone or other brominated isomers. From our experience, the para-bromo group improves regioselectivity, which benefits many laboratory and industrial settings, especially in medicinal chemistry and fine chemical manufacture.

    Other isomers such as 2'- or 3'-Bromovalerophenone bring their own traits, but the 4'-compound often achieves cleaner conversions when used as a starting point for Suzuki, Heck, or other palladium-catalyzed couplings. Having supplied both the 4'- and 2'-isomers, our chemists noticed the 4'-bromo version reduces side products during ring substitutions. This detail rarely appears in generic technical sheets but becomes clear with hands-on research and process optimization.

    Meeting Project Demands: Quality That Matters

    We know that for research groups or production engineers, reliable sourcing of raw materials remains a constant challenge. Shortages and inconsistencies in quality can throw off project timelines and budgets. In the case of 4'-Bromovalerophenone, our batch records and process controls make a real difference. Our production capacity scales to match both modest research projects and larger volume commercial needs. Each run is monitored and documented, so traceability never falls by the wayside.

    We have worked closely with end-users in fields ranging from medicinal chemistry to electronic materials, who use this compound to introduce complex motifs onto the phenyl core of candidate molecules. In our view, its value comes down to three qualities: clean reactivity, supply chain stability, and cost-control. Product loss due to impurities or unpredictable reactivity creates not only financial setbacks, but also additional environmental burden from waste. Over the years we have implemented feedback from partners, adjusting solvent systems and refining crystallization steps, which secures a material profile that limits by-products and downstream disruptions.

    Daily Handling and Safety Emphasis

    People trust manufacturers to understand the safety and handling requirements of the chemicals they produce. In our plant, regular training and handling protocols limit exposure risks and maintain product stability from synthesis to shipment. For 4'-Bromovalerophenone, we maintain a cool, dry storage area with limited access, use sealed packaging to avoid moisture ingress, and leverage automated handling wherever possible. Staff leans on protocols that involve personal protective equipment and ready access to updated handling guidance.

    We also keep our process transparent about the environmental impact of 4'-Bromovalerophenone. Our wastewater stream runs through multiple stages of treatment before discharge, limiting accidental release of organobromine species. Each production campaign includes a waste minimization review and chemical recycling assessment. As environmental legislation has grown stricter in recent years, we've transitioned to lower-impact reagents and improved energy efficiency to ensure more responsible operations.

    Comparison with Other Ketones: Why 4'-Bromovalerophenone?

    Our customers often ask why 4'-Bromovalerophenone takes priority over other ketones for certain syntheses. The bromine atom unlocks new pathways, allowing the fragment to take part in substitution and coupling chemistry with fewer limitations. Unlike chlorinated or fluorinated analogs, the bromine group sits at a midpoint between reactivity and cost. The molecule stands up well in oxidative environments and supports high-yield, low-waste transformations that other ketones can struggle with.

    From a manufacturing standpoint, we see the difference in daily operations. Yields during the synthesis of the 4'-isomer tend to remain high even as we shift from gram scale to multi-kilogram runs, thanks to predictable intermediate formation. The bromine’s location on the ring balances selectivity for downstream chemistry and maintains resistance to over-reduction. These points translate to more efficient resource use, fewer purification steps, and reduced solvent demands versus other functionalized valerophenones. Labs working at all scales, whether prepping new compound libraries or running pilot-scale production, find this compound compatible with common protocols.

    Supporting a Broader Innovation Pipeline

    Companies and academic groups pursuing pharmaceutical development, agrochemical research, and advanced materials all rely on robust intermediates. 4'-Bromovalerophenone fits into these pipelines as a stabilizing anchor. In medicinal chemistry, researchers employ it to create analogs with increased target selectivity and metabolic stability. Its aryl bromide function adds flexibility, letting teams explore structure-activity relationships without falling into challenging side reactions.

    Our technical support team regularly collaborates with project chemists to optimize protocols for coupling, reduction, and further substitutions. A reliable source of high-purity starting material can shave weeks off method development times and improve the reproducibility of screening campaigns. Over the years, we’ve seen new product launches in both small molecule therapeutic and specialty polymer fields that point back to early-stage successes with 4'-Bromovalerophenone as a base structure. The stories that matter to us are those where a dependable intermediate makes discovery and scaling less of an obstacle.

    Feedback-Informed Process Evolution

    We have never considered chemical manufacturing a static field; every batch brings new insight and often, new challenges. Feedback loops between the chemists at the bench, the production engineers, and the quality control team continually highlight where we can improve yield or reduce impurities. With 4'-Bromovalerophenone in particular, the drive toward greater reproducibility led us to incorporate more in-process monitoring and real-time data capture. Fine-tuning reaction temperatures, adjusting solvent ratios, and even evaluating alternative phase-transfer agents have changed our process outcomes for the better.

    One case in point involves transitioning some synthetic steps from traditional batch reactors to flow chemistry. Our operators recorded tighter batch-to-batch purity specifications and a measurable reduction in by-product formation. These process changes didn’t require elaborate new infrastructure, but rather a willingness to listen to the staff and end-users who shared their struggles with older synthesis approaches. Rather than rely on fixed routines, we explore incremental modifications with an eye on continuous improvement.

    Responding to Regulatory and Market Pressures

    Ever-shifting regulatory standards affect how and where specialty chemicals like 4'-Bromovalerophenone can be produced, handled, and shipped. We have responded by integrating traceability systems as early in our production workflow as possible, so compliance does not become a bottleneck for delivery or quality. In our experience, proper documentation and clean paperwork builds more trust with customers than a dozen audit promises or declarations. Our regular in-house checks mirror the spot audits demanded by customers and authorities.

    Prices of raw materials, energy, and transportation jump around unpredictably, yet our plant adapts without cutting corners in process safety, waste management, or batch documentation. Keeping supply lines steady puts demand for transparency on everyone along the chain—from our own procurement of bromine compounds to logistics handover at our loading dock. Alerts about impurities or rogue batches get flagged early, and each action gets recorded for later review. Our investment in data management software comes not from industry buzz but from necessity for quick root-cause investigation.

    The Everyday Realities of Consistent Production

    Daily manufacturing never operates in the abstract. Keeping 4'-Bromovalerophenone on-spec means dealing with equipment wear, fluctuating raw material purity, and sometimes, sudden changes in customer forecast. Our plant runs with a blend of legacy gear and newer automated systems, each chosen based on the value it adds to final output, not for appearance or trendiness. Maintenance and scheduled downtime prevent more costly shutdowns. Shop-floor communication often reveals more about product quality trends and improvement areas than centralized management dashboards do.

    We take sampling seriously at every process stage. Early, in-process HPLC readings give clues about reaction progress and likely impurity burdens. By increasing the granularity of our data, we troubleshoot sooner and support our quality control chemists in their routine analyses. That same rigor goes into shipment checks, so what leaves our gate matches customer expectations set by previous orders. Each kilo of 4'-Bromovalerophenone passes not only technical specifications, but also the practical tests set by the chemists who will transform it into something new.

    Collaborative Improvements: Listening to the End-User

    As chemical manufacturers, our perspective differs from traders passing material hand-to-hand. Our relationships last as long as the projects we support, and our pride comes from adapting to real-world feedback. Many in-house synthesis routes for 4'-Bromovalerophenone have grown from requests for lower residual solvents or more robust packaging to prevent breakdown during storage and shipping. We’ve introduced tamper-evident seals, improved desiccant systems in drums, and adjusted fill weights for easier handling, all drawn from repeated dialogue with the people actually using our materials.

    We invite user feedback in every shipment, not just in customer service surveys, but by encouraging open communication with our technical team. This approach has uncovered new uses and adjustments that benefit both sides. Our approach rejects the idea that production and innovation exist in separate silos; both happen daily as we respond to changing demand, tighter lead times, and new synthetic challenges presented by researchers and formulators.

    Value Through Transparency and Honest Practice

    Delivering fine chemicals like 4'-Bromovalerophenone with assurance starts with openness. We make available as much technical data as practical, including chromatograms and spectra, so buyers know what they’re working with long before a shipment arrives. Fast and clear answers on issues like moisture content, bromine source, or shelf-life come from people who understand the product—not from canned responses. End-users, whether purchasing ten grams or several hundred kilograms, receive the same baseline level of support and traceability.

    We regard our role as more than an ingredient supplier. Rather than focus solely on meeting a single set of published specs, we work to solve the practical problems faced by real chemists every day. These exchanges reveal where the marketplace can improve and where our own methods fall short. We consider it a strength to admit where older routines fail and invest in new methods that do more for our partners.

    Opportunities and the Road Ahead for 4'-Bromovalerophenone

    The market for 4'-Bromovalerophenone has expanded as more companies and researchers use modular building blocks in complex syntheses. New applications arise from the continual search for efficiency, greener chemistry, and novel therapeutics. We see the flexibility in the compound’s brominated aryl structure giving it a continued place at the frontier of drug discovery, electronic materials, and specialty polymer synthesis.

    Challenges persist, from price uncertainties to regulatory hurdles and the ever-present need for greater sustainability. We approach these challenges not as a burden, but as incentives to refine our approach—driving process improvements, reducing waste, and assisting customers through clearer communication and consistent technical partnership. Our team remains committed to supporting both routine and cutting-edge uses for 4'-Bromovalerophenone, ensuring that reliability and performance shape each order that leaves our door.

    Why Our Commitment Matters

    Every kilogram of 4'-Bromovalerophenone reflects more than chemical bonds and regulatory checks. For the people at our site, it represents years of practical learning, adaptation, and the shared pursuit of process excellence. By connecting rigorous manufacturing practice with honest dialogue, we deliver a compound that supports innovation across chemical industries, and that keeps pace with the realities of modern research and production.