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4-Bromophenylhydrazine Hydrochloride

    • Product Name 4-Bromophenylhydrazine Hydrochloride
    • Alias 4-Bromophenylhydrazine Hydrochloride; 4-Bromophenylhydrazine HCl; NSC 84517; 1-(4-Bromophenyl)hydrazine hydrochloride
    • Einecs 237-707-7
    • 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

    940020

    Product Name 4-Bromophenylhydrazine Hydrochloride
    Cas Number 2834-92-6
    Molecular Formula C6H7BrClN2
    Molecular Weight 223.49 g/mol
    Appearance Light tan to light brown powder
    Melting Point 223-226 °C (dec.)
    Solubility Soluble in water and alcohol
    Purity Typically ≥98%
    Storage Temperature 2-8°C
    Iupac Name 4-bromo-phenylhydrazine hydrochloride
    Synonyms p-Bromophenylhydrazine hydrochloride
    Ec Number 220-613-9

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

    Packing & Storage
    Packing The packaging is a sealed amber glass bottle containing 25 grams of 4-Bromophenylhydrazine Hydrochloride, labeled with safety and chemical information.
    Shipping 4-Bromophenylhydrazine Hydrochloride is shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. The packaging complies with chemical safety regulations, including hazardous materials labeling. During transit, temperature control and secondary containment may be used to minimize risk. All handling and shipping procedures adhere to relevant local and international guidelines.
    Storage 4-Bromophenylhydrazine Hydrochloride should be stored in a tightly sealed container, protected from light and moisture, and kept in a cool, dry, and well-ventilated area. Avoid exposure to incompatible substances, such as strong oxidizing agents. Store away from sources of heat and ignition. Refrigeration may be recommended for extended stability; always follow the manufacturer’s specific storage guidelines.
    Application of 4-Bromophenylhydrazine Hydrochloride

    Applications of 4-Bromophenylhydrazine Hydrochloride in Industrial Manufacturing

    We supply 4-Bromophenylhydrazine Hydrochloride as an essential intermediate for chemical synthesis across several specialized industries. Below, we outline established downstream applications, with sector-specific integration details and regulatory requirements for industrial users.

    1. Active Pharmaceutical Ingredient (API) Synthesis for Oncology Drugs

    Pharmaceutical companies extensively use this material in the multi-step synthesis of arylhydrazone-based intermediates, crucial for manufacturing certain small-molecule oncology APIs. It participates in condensation and cyclization processes, forming pharmacophores found in antitumor compounds. Production facilities must implement high-purity controls and traceability at every batch stage, with compliance documentation for global GMP and DMF registration crucial throughout the value chain.

    Industry compliance standards

    • ICH Q7 GMP for APIs
    • U.S. FDA 21 CFR Parts 210/211
    • EU EudraLex Volume 4
    • Chinese Pharmacopoeia (when for PRC market entry)

    Typical usage ratio

    • 0.9–1.2 molar equivalents per hydrazone coupling step, adjusted according to targeted molecular yield and impurity profile

    Downstream process integration

    • Dosed directly into reaction vessels after pH adjustment, preceding or simultaneous to coupling agents
    • QC samples pulled post-condensation to verify conversion and residual levels under validated methods
    • Hydrochloride nature supports aqueous-phase control, simplifying downstream isolation

    Final product types

    • Targeted cytotoxic/antineoplastic APIs (e.g., hydrazone-derived kinase inhibitors)
    • Clinical research bulk substances for formulation

    2. Agrochemical Intermediate for Herbicidal Azo Compounds

    The agricultural protection industry leverages this material as a building block for the synthesis of biphenyl and azobenzene derivatives. These intermediates feed directly into the development of selective pre-emergent and post-emergent herbicides. Manufacturing setups emphasize control of side-reactions and conform to strict environmental and operator-safety mandates typical of large-scale agrochemical processes.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • REACH (EC 1907/2006) for European market
    • ISO 9001 quality management systems in production
    • China’s ICAMA registration guidelines (for exports to China)

    Typical usage ratio

    • 1.0–1.15 molar ratio relative to target azobenzene core formation; the ratio is tuned based on desired by-product suppression

    Downstream process integration

    • Introduced during oxidative coupling or diazotization stages
    • Intermediate isolation under controlled nitrogen atmosphere to prevent degradation
    • Process wastewater monitored for hydrazine residuals per environmental guidelines

    Final product types

    • Pre-emergent herbicide actives
    • Biphenyl-based selective weed control agents
    • Intermediate stocks for further chlorination or nitration

    3. Specialty Dye and Pigment Manufacturing

    Dye houses and pigment manufacturers employ the compound to create azo and hydrazone dyes suitable for use in textiles, printing inks, and speciality coatings. The aromatic hydrazine unit ensures high chromophore formation rates, improving batch-to-batch color consistency and achieving performance targets in finished materials. Production workflows mandate batch certification and trace detection of regulated impurities, with process audits linked to ISO and local dyestuff directives.

    Industry compliance standards

    • Oeko-Tex® Standard 100 (for textile dyes)
    • ISO 9001:2015 for dyestuff production facilities
    • EU REACH Annex XVII (specific dyes and aromatic amine limits)
    • EN 71-3 for toy/children’s product pigments (where relevant)

    Typical usage ratio

    • 1.05–1.25 equivalents per mole of diazonium salt; higher ratios optimize shade intensity for deep-toned pigments

    Downstream process integration

    • Dosed into diazotization or condensation tanks after pH buffering
    • Reactants stirred under inert gas to maximize chromophore yield and minimize by-products
    • Filtration and evaporation steps applied post-reaction to concentrate dyestuff

    Final product types

    • Textile disperse dyes
    • High-stability printing pigments
    • Specialty colorants for automotive and industrial coatings

    4. Chemical Research and Custom Synthesis

    CRO/CDMO and academic research laboratories utilize this hydrazine derivative to explore novel heterocyclic scaffolds, enable target molecule library synthesis, and investigate structure–activity relationships. Strict documentation accompanies each use, with careful management of hazardous chemical storage and transfer. High-purity batches support advanced analytical development and scale-up under cGLP or cGMP conditions where warranted.

    Industry compliance standards

    • OECD Principles of Good Laboratory Practice (GLP)
    • Custom chemical synthesis governed by local chemical usage safety and transport regulations
    • ISO 17025 for analytical test laboratories

    Typical usage ratio

    • Varies from 0.95–1.20 equivalents depending on the complexity of target molecular structures and need for excess reactant to drive completion

    Downstream process integration

    • Weighing and addition at bench or pilot plant scale directly to dry or buffered reaction mixtures
    • Isolation and purification for structurally diverse hydrazone or heterocycle compounds
    • Reactive intermediates monitored using LC-MS and NMR for purity and byproduct identification

    Final product types

    • Research sample libraries for drug discovery
    • Reference standards for analytical method development
    • Specialized intermediates for custom pharmaceutical or agrochemical manufacturing partners

    5. Synthesis of Analytical Reagents and Chromatographic Derivatization Agents

    Producers of laboratory analytical kits and chromatography consumables employ this compound in the formulation of derivatization agents for sensitive detection of carbonyl-containing analytes. The hydrazine functional group forms stable hydrazones for enhanced UV/Vis and MS detection, especially in QA/QC settings across pharmaceutical and environmental testing labs. Users in regulated industries adhere to extensive documentation protocols for traceability and reference material preparation.

    Industry compliance standards

    • ISO 17034 for reference material producers
    • USP <1225> Validation of Analytical Procedures (for pharmaceutically relevant use)
    • Complies with Good Laboratory Practice (GLP) in regulated lab settings

    Typical usage ratio

    • Usually 1.0–1.1 equivalents against target aldehydes or ketones; adjusted for excess to guarantee complete conversion in trace analysis

    Downstream process integration

    • Integrated into derivatization reagent blend during kit formulation
    • Batched with solvents and buffers for ready-to-use laboratory reagents
    • Quality control includes trace analysis of residual bromide and hydrazine

    Final product types

    • Analytical derivatization kits for HPLC/LC-MS
    • Reference solution sets for regulatory submissions
    • Customized detection reagents for environmental and pharmaceutical testing
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    Certification & Compliance
    More Introduction

    4-Bromophenylhydrazine Hydrochloride: A Closer Look from a Manufacturer’s Perspective

    Introduction

    Down here in our facilities, you can really see how 4-Bromophenylhydrazine Hydrochloride fits into the way fine chemical production keeps evolving. As manufacturers, we know firsthand what it means to take raw materials and push their boundaries into high-purity products that researchers, pharmaceutical producers, and specialty chemical makers depend on every day. Our experience tells us there’s no shortcut between a consistent process and a reliable final product. 4-Bromophenylhydrazine Hydrochloride, or CAS Number 2836-60-0, sums up just why careful attention pays off, batch after batch. We’ve handled enough hydrazine derivatives to know quality isn’t something to talk up — it’s something our clients will spot the moment they reconstitute a sample in solvent or run their first reaction.

    Making and Handling This Compound

    The best way to understand the footprint of 4-Bromophenylhydrazine Hydrochloride is to actually look at the process from start to finish. Beginning with high-purity precursors, we take special care to tightly control water content and exposure, since this salt form can get sticky and lose weight to the air if left unchecked. The product typically forms as a pale to light brown powder or crystalline solid, with nearly negligible amounts of stray color and limited clumping. This matters, since any hint of decomposition — whether it’s from moisture or excess oxidants — shows up right away as discoloration or erratic melting points.

    Technically, we most often manufacture the compound using diazotization and reduction, which brings us a clear–cut phenylhydrazine framework with a reactive bromine ortho to the hydrazine. The hydrochloride salt yields better stability, easier handling in storage and shipping, and keeps the batch consistent even after longer shelf times. Over the years, we’ve tuned our process to avoid any byproducts that muddy the chemistry, especially polynuclear species or oxidized contaminants, which can disrupt users’ downstream work in fields such as pharmaceutical synthesis or dye manufacturing.

    Usage: What We’ve Learned Works Best

    Most of the demand for 4-Bromophenylhydrazine Hydrochloride comes from research groups, development labs, and specialty producers who use it in the synthesis of heterocyclic compounds. Its reactivity offers a strong starting point for building indoles, pyrazoles, and triazoles, because the hydrazine moiety reacts readily with carbonyls, while the aromatic bromine opens opportunities for substitution or cross-coupling. As a result, we see this compound at the heart of many routes for API intermediates, dye molecules, and coordination complexes.

    Customers in medicinal chemistry, particularly those developing pain management or CNS-acting molecules, favor this hydrazine for how it unlocks specific chemical motifs that aren’t easily reached through other starting materials. We make sure the specification sits tight: high purity (usually over 98%), controlled chloride content, and particle size within a practical range. There’s little room for off-spec, because unreliability in a starting reagent costs scientists days of troubleshooting. We take feedback from these clients to fine-tune particle size and flow characteristics, especially since filtration and work-up steps in bench chemistry benefit from well-behaved powders.

    Comparing to Other Hydrazine Salts and Derivatives

    It’s worth laying out where 4-Bromophenylhydrazine Hydrochloride stands compared to other hydrazine derivatives. Pure phenylhydrazine tends to oxidize much quicker, forming tar and releasing a strong smell, so switching to the hydrochloride keeps sample quality steady. If we compare the 4-bromo variant to unsubstituted phenylhydrazine hydrochloride, the bromo group creates a distinct electronic effect, shifting the selectivity and reactivity in ways organic chemists value, especially for constructing frameworks not accessible from the standard compound.

    Market demand for para-bromo-substituted hydrazines outpaces ortho- or meta- isomers, since regioselective halogenation at the para position gives a handle that synthetic chemists can use for Suzuki, Stille, or Buchwald-Hartwig coupling. Many of our larger clients request this very selectivity for streamlined library synthesis, reducing both the number of synthetic steps and the level of purification headaches down the line. Some manufacturers have tried switching to other acid salts, like the sulfate or acetate, but the hydrochloride remains the favorite due to its combination of physical stability and ease of integration into multi-step protocols.

    Production Challenges and Solutions

    Ask any chemist on our floor about hydrazine derivatives, and right away they’ll mention storage and safety. Hydrazines tend to be sensitive, forming peroxides or decomposing if exposed to air or impurities. Over the years, we’ve tackled these problems by investing in dedicated air-tight equipment, monitoring the oxygen content closely, and setting up isolated handling rooms for drying and packing. Staff get extensive training, knowing not to rush any step where trace metal can set off side reactions.

    Optimizing yield matters, but not at the cost of safety. We’ve seen other sites cut corners with open-vessel workups, but our policy locks down transfer lines and checks every batch for signs of degradation. During winter, cold temperatures help keep the product steady, but heat and humidity jump in the summer months. To counter this, we upgraded storage rooms with climate control, backing it up with humidity sensors and regular inspections. It’s the simplest lessons — like avoiding over-drying, packaging quickly, and choosing the right desiccants — that have given us the edge in delivering batches that look as good months later as on day one.

    Quality and Traceability

    We’ve never seen a shortcut when it comes to quality control. In our lab, analysts run thin-layer chromatography (TLC), melting point checks, and full NMR/IR confirmation for every lot of 4-Bromophenylhydrazine Hydrochloride before it ships. The biggest difference between a manufacturer and a trader lies in the ability to guarantee batch consistency year-round. We pull from the same reactors and standardize every work-up process, so if a longtime customer asks for a repeat order, they get the same performance as before.

    Traceability stays critical, not just for regulatory compliance but for internal problem-solving. Each batch gets tracked back to its originating raw materials, so if a researcher flags an odd spot in their reactions, we have the documentation spanning raw input, in-process sampling, and post-packing analysis. Our team handles post-shipment inquiries directly, avoiding third-party confusion. This loop not only provides confidence for customers, but also sharpens our own improvement process, because every single deviation leads to a real review.

    Applications in the Real World

    The most rewarding part of producing 4-Bromophenylhydrazine Hydrochloride comes from seeing the compound move out of the plant and into real scientific progress. This hydrazine finds a place in both academic and industrial projects targeting anti-cancer candidates, dye intermediates, and materials science. For example, we’ve followed clients developing selective serotonin reuptake inhibitors (SSRIs), using this reagent for the synthesis of core heterocycles and further bromine manipulations. In coordination chemistry, metallated products enable projects focused on new catalysts or imaging agents.

    We notice trends in the requests, too. Increasingly, green chemistry-focused groups look to minimize waste in hydrazine reactions, so we’ve started packaging the product in custom amounts to avoid leftovers. Environmental standards are climbing as well. Our customers, especially those in Europe and North America, ask for updated documentation about residual solvents, impurity profiles, and full transportation trace. Meeting these requirements means regular process audits and, sometimes, declining a batch that doesn’t hit every mark — even when disposal cuts into profits.

    Difference from Commodity Offerings

    Making 4-Bromophenylhydrazine Hydrochloride in a real manufacturing setting highlights differences from what might be found on broad chemical supply lists. Scale matters, but so does hands-on verification. Commodity producers push for output volume, but in our shop, batch-to-batch scrutiny comes first. We’ve learned that even small tweaks in purification, crystallization, and drying methods will show up in downstream reactions long before lab QC finds an issue. With direct control, we can overhaul a step if needed, without waiting on outside approval.

    Some other suppliers package blended batches, mixing materials from different runs or even different plants. We stick to single-lot integrity. This means a customer trying to reproduce chemistry gets a direct comparison, rather than unexplained drifts due to mixed sources. Chatter from our clients in pharma R&D suggests this reliability saves weeks during scale-up. Feedback from end-users has pushed us to reconsider every element, from anti-static bags to the types of labels printed, keeping the real-world workflow in mind.

    Solving Emerging Issues and Listening to the Market

    Markets evolve, and so do the challenges. Regulatory shifts push us toward ever tighter impurity thresholds, often years before standards become enforceable. Lately, we’ve invested in higher-resolution chromatography and mass spectrometry, both for internal use and to generate the detailed CoA documents expected by global clients. Reaching consistency hasn’t come easy, but the result is batches with fewer recalls and better reputations.

    As synthetic routes grow more inventive, we listen to process chemists looking for unique particle size distributions, customer-specific packaging, or deviations from the standard stability profile. Requests from high-throughput screening labs, for instance, had us experiment with solid forms that dissolve rapidly in DMSO or acetonitrile. The push for more sustainable packaging has cut down our use of plastics, moving toward glass or metal-lidded containers when feasible. Our local team brainstorms with logistics partners to streamline compliant shipping while minimizing both cost and risk.

    Compliance and Transparency

    The biggest regulatory hurdles around 4-Bromophenylhydrazine Hydrochloride come from its status as a sensitive intermediate in energetic or pharmaceutical chemistry. Local and international authorities require thorough records for each shipment: lot numbers, dates, purity, and usage intent. We work directly with compliance officers to stay ahead of changing expectations, particularly in regions with heightened scrutiny. Our documentation gives customers and regulators alike a clear view of how the product moved from starting material to finished vial.

    We take feedback from site inspectors and clients alike, then review our hazard communication, spill protocols, and training modules at least annually. By keeping these up to date, we reduce incidents and build trust, both internally and across our supply chains. Transparency acts as its own reward: less bureaucracy slows down real-world innovation, opening up faster turnaround for researchers who can rely on well-documented materials.

    The Manufacturer’s Role in Supporting Science

    From the inside, being a direct manufacturer of 4-Bromophenylhydrazine Hydrochloride brings a lasting sense of connection to the frontiers of chemical science. Our process allows us to see which synthetic methodologies take root, and which ones get left behind. Chemists regularly reach out for advice, which ties our daily grind back to fresh research, novel drugs, and sometimes commercialized products that make a difference. These conversations spark improvements; seeing the finished compound drive an important piece of medicine forward underlines all the invisible steps taken in production.

    No automation ever fully replaces the hand-and-eye judgment built over years in the plant: temperature controls, solvent selection, sample reviews, the rare but critical last-minute fix. We take pride in having veterans mentor newcomers, passing down what works and what doesn’t when producing sensitive hydrazine derivatives. This culture of shared expertise closes the loop between day-to-day plant operations and the far-reaching demands of researchers at the cutting edge.

    Outlook and Opportunities

    Looking forward, the importance of 4-Bromophenylhydrazine Hydrochloride seems set to keep growing in both established and emerging sectors. As new drugs enter clinical pipelines and specialty dyes drive further into electronic device manufacturing, the specific handling and reactivity of this compound keep it relevant. We keep talking to customers developing green processes, investigators tweaking every stage of a synth route, and educators introducing the next generation of scientists to hands-on chemical research.

    Continuous investment in production flexibility, analytical capabilities, and personnel education gives us the confidence to adapt as regulations, applications, and market forces shift. While we make particular hydrazine salts today, next month might see requests for new derivatives or even cleaner, more precisely tailored forms. Our job sits at the interface between industrial reality and scientific possibility, and 4-Bromophenylhydrazine Hydrochloride stands as a testament to why direct manufacturing — not just distribution — shapes the foundations other fields build on.