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5-Bromo-2-Chlorophenol

    • Product Name 5-Bromo-2-Chlorophenol
    • Alias 5-Bromo-2-chloro-1-hydroxybenzene
    • Einecs 249-877-6
    • 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
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    Specifications

    HS Code

    522011

    Chemical Name 5-Bromo-2-Chlorophenol
    Cas Number 3964-56-5
    Molecular Formula C6H4BrClO
    Molecular Weight 223.45 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 77-80°C
    Boiling Point 260°C (estimated)
    Density 1.76 g/cm³
    Solubility In Water Slightly soluble
    Purity ≥98%
    Flash Point 123.7°C
    Refractive Index 1.602 (estimated)
    Smiles C1=CC(=C(C=C1Cl)O)Br
    Synonyms 2-Chloro-5-bromophenol

    As an accredited 5-Bromo-2-Chlorophenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 5-Bromo-2-Chlorophenol, sealed with a red cap and labeled with hazard warnings.
    Shipping 5-Bromo-2-chlorophenol is shipped in tightly sealed containers, following all relevant chemical safety and transport regulations. The package is clearly labeled with hazard information, and stored in a cool, dry place, away from incompatible substances. Shipping complies with international standards (IATA, IMDG, DOT) for hazardous materials to ensure safe delivery.
    Storage 5-Bromo-2-chlorophenol should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Keep it away from direct sunlight, heat sources, and moisture. Proper chemical labeling and secondary containment are recommended to prevent leaks or spills. Access should be restricted to trained personnel using appropriate personal protective equipment.
    Application of 5-Bromo-2-Chlorophenol

    Applications of 5-Bromo-2-Chlorophenol in Industrial Manufacturing

    As a specialized producer of 5-Bromo-2-Chlorophenol, we serve manufacturers operating in established segments that rely on rigorous process control and regulatory compliance. Below, we detail authentic application cases with industry-specific standards, precise formulation guidance, integration in production lines, and the nature of finished goods enabled by this key intermediate.

    1. Pharmaceutical Intermediate Synthesis for Active Pharmaceutical Ingredients (APIs)

    Our material plays an essential role as a halogenated phenol intermediate in the multi-step synthesis of selective anti-infective APIs and other drug substances featuring halogen substitution. Its reactivity and substitution pattern are critical for developing molecular scaffolds that meet both efficacy and impurity profile requirements mandated by international agencies.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • EU GMP Annex 8 (Starting Materials)
    • United States Pharmacopeia (USP) chapter General Notices 3.2
    • Drug Master File (DMF) documentation standards (US FDA)

    Typical usage ratio

    • 0.3–1.5 molar equivalents per targeted API intermediate, adjusted based on synthesis step and stoichiometry demands

    Downstream process integration

    • Enters as a coupling synthon in the second or third condensation stage, post-protection and prior to cyclization
    • Consumption during nucleophilic aromatic substitution to introduce bromo-chloro phenyl motifs into API backbones

    Final product types

    • Antibacterial agent intermediates (e.g., halogenated phenol antibiotics)
    • Small-molecule oncology drugs with halogenated aromatic structures
    • Antiparasitic drug intermediates
    • Anti-inflammatory drug raw materials

    2. Synthesis of Agrochemical Active Ingredients

    The targeted halogenation enabled by this raw material is essential in both the construction of herbicides and fungicides requiring ortho-substituted aromatic rings. Agrochemical formulators leverage the material for its specific electronic effects, enabling improved biological activity and metabolic stability in finished plant protection actives.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • REACH Regulation (EC) No 1907/2006 Annex II (Safety Data Sheet requirements)
    • ISO 9001:2015 (Quality Management System for chemical synthesis)
    • OECD Guidelines for the Testing of Chemicals (analytical traceability)

    Typical usage ratio

    • 5–15% w/w of target reaction mass, formula adjusted by desired halogen density and targeted substitution efficiency

    Downstream process integration

    • Charged as a halogen donor in the initial coupling or appended in later-stage ring modification reactions, depending on the active’s structure

    Final product types

    • Halogenated fungicide bases
    • Bromo-chloro-based herbicide technical concentrates
    • Insecticide intermediate scaffolds with ortho-halogen phenol structures

    3. Industrial Dye and Pigment Intermediate Production

    Within the dyes and pigments sector, our compound provides crucial bromo- and chloro-phenol building blocks for high-performance azo, triarylmethane, and phthalein colorants. The dual halogenation allows for fine-tuning lightfastness, shade, and process temperature tolerance essential in specialty and textile colorant manufacturing.

    Industry compliance standards

    • EN 71-3 (Migration of certain elements in toy pigments)
    • Oeko-Tex Standard 100 (Chemical Safety in textile colorants)
    • ZDh (German Association of Dye Manufacturers) Environmental Quality Specs
    • REACH Article 33 (Substances of very high concern reporting)

    Typical usage ratio

    • 3–12% by mass, adjusted based on target dye’s structural requirements and color strength

    Downstream process integration

    • Feeds into diazotization and coupling steps for azo colorants or acts as a direct coupling base for phthalein pigment synthesis
    • Employed during sulfonation or carboxylation stages for modifying dye solubility and affinity

    Final product types

    • Textile and paper dyes
    • Ink and coating pigments for plastic and leather finishing
    • High-lightfast printing ink intermediates
    • Technical-grade dispersants for synthetic fiber coloring

    4. Synthesis of Specialty Polymers and Resins

    In the specialty polymer and resin industry, the compound functions as a controlled halogen source for introducing functional aromatic halide segments into prepolymer chains. This modification imparts flame retardancy and elevated thermal stability to engineering resins used in electronics and performance plastics, matching the needs of advanced electronics and automotive applications.

    Industry compliance standards

    • UL 94 (Flammability standard for plastic materials)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in electrical and electronic equipment)
    • ISO 14001 (Environmental Management in specialty chemical production)
    • IEC 61249-2-21 (Base materials for printed boards)

    Typical usage ratio

    • 0.8–2.5% by mass in prepolymer resin batches; formulation may shift depending on target flame retardancy or halogen content regulations

    Downstream process integration

    • Introduced during the pre-condensation or post-polymerization halogenation for modified phenol resin systems
    • Included as a feedstock to form halogenated crosslinked nodes in high-performance thermoplastics

    Final product types

    • Flame-retardant epoxy resins for circuit boards
    • Specialty phenolic resins for automotive friction materials
    • Halogenated polyether ketones for aerospace composites
    • Technical casting resins for electrical insulation
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    Certification & Compliance
    More Introduction

    5-Bromo-2-Chlorophenol: Experience from the Factory Floor

    Years of Manufacturing Drive Practical Quality

    At our production site, the daily work with 5-Bromo-2-Chlorophenol keeps us close to the details that matter in real-world processes. Our people know the strengths and downsides of this compound because hands-on effort and constant testing shape every batch. This substance, often referenced by its CAS Number 1954-56-5, offers a balance of reactivity and selectivity that researchers and process chemists count on. We know its quirks, from its handling behavior to its role in synthesizing more complex structures.

    Features Built from Chemical Know-how

    5-Bromo-2-Chlorophenol isn’t just another halogenated phenol. Its molecular formula, C6H4BrClO, shows up in documents, but this doesn’t communicate how its structure impacts your actual yield or purity specifications. Over time, we’ve tuned our production process to push for high assay—typical lots from our reactors measure above 99% by GC analysis. These fine chemical details mean fewer question marks for your process downstream.

    Purity impacts more than just a line on a certificate. In pharmaceuticals and advanced material synthesis, side products inflate costs by complicating purification. By pushing for higher purity, we help reduce the headaches and wasted labor that result from too many trace impurities. Chemists have told us that skipping extra re-purification steps saves them days.

    Understanding Application: How and Why It Performs

    From agricultural synthesis to specialty pharma intermediates, 5-Bromo-2-Chlorophenol stands out for its dual halogenation—one bromine, one chlorine on the aromatic ring. This pattern sets up unique substitution reactions that other mono-halogenated phenols simply can’t offer. We’ve watched our customers in the lab trade ideas on selective couplings and substitutions made possible by this pattern. In some syntheses, accessing certain target molecules demands the controlled, predictable reactivity that this compound provides.

    In dye and pigment chemistry, the dual halogen setup brings an edge for fine-tuning colorfastness and stability, versus more common pentahalophenols. Because regulatory pressure continues to push for more carefully defined, traceable raw materials, knowing your intermediates—structurally and in terms of residual metals or side-products—makes all the difference. We analyze every lot with rigorous chromatographic and spectroscopic methods so you can trust what goes into your final recipe.

    Handling Properties Matter in Practice

    Batches of 5-Bromo-2-Chlorophenol crystalize as off-white to light brown powders, depending on storage and exposure. Some newer users expect a near-white product and worry when they see faint beige. In reality, minor color shifts usually stem from trace oxidation at the packing line rather than core impurity problems. We overcame early issues through argon purging, new packaging liners, and better inline filters on our grinding mills. These plant-floor changes carry forward in every drum, minimizing batch-to-batch surprises when operations gear up.

    Water pickup causes clumping if packaging gets breached; not a problem if drums stay sealed, but we point this out to every new user because half our technical calls once came from misunderstandings over storage. By using double-sealed containers and silica desiccant sacks, the product stays free-flowing for much longer even in humid warehouse conditions. Detail work like this grew from direct feedback between our blending room operators and customer-site chemists.

    Purity Grades: What’s Right for Your Work

    Chemical synthesis often means tailoring quality to both regulatory needs and technical specs. We don’t just chase 100% assay on paper. Instead, batches for pharma intermediates demand deeper control over trace halides, residual solvents, and metals. We run ICP-OES for heavy metal detection and low-level colorimetric screens for residual free halogens before signing off a shipment. In electronics and specialty coatings, the concern shifts to particle size distribution and flow characteristics.

    Compared with cheaper, broad-grade material available globally, our higher purity lots slot easily into regulated industries. Last quarter, a team working on an API intermediate commented that our batches saved three reprocessing steps compared to their previous supplier, thanks to lower trace organics. On another front, a pigment-house needed tighter bounds on iron and copper contamination to prevent downstream color drift; their spectroscopic feedback looped back to change our filtration setup.

    Real Differences from Other Products

    Mono-halogenated phenols have their place, but 5-Bromo-2-Chlorophenol brings its distinct chemistry into play. That extra chlorine alters electron density, making the aromatic ring more suitable for controlled stepwise substitution. Whether building up complexity in pharmaceuticals or tuning reactivity for specialty resins, this dual-substituted structure can set a pathway no single halogen will support.

    Some ask, why not use pentabromophenol or pentachlorophenol? In practical work, excessive halogenation raises regulatory risks and leaves persistent residues. We’ve watched stricter guidelines come down over the years, nudging many users towards intermediates with fewer halogen atoms. 5-Bromo-2-Chlorophenol walks the line: reactive enough for efficient coupling, but less worrisome from both a health and environmental standpoint.

    Physical handling also sets this compound apart. Compared with polyhalogenated analogues, material flow stays cleaner in automated dispensing systems. Dusting, a headache for health and loss reasons, drops off in proper sealed transfer; finer powders always mean more focus on adequate ventilation and containment—details often overlooked until a batch goes wrong. Our operators have learned that tweaking rotor speeds and bagging seals creates better containment, which directly translates to cleaner downstream process rooms.

    Everyday Manufacturing Insights

    Scaling up from gram to multi-ton scale throws all sorts of challenges our way. Years back, we learned that even small variations in input phenol quality alter chlorination rates and impurity profiles. Laboratory synthesis can cover up a multitude of processing sins with fine purification, but plant-scale throughput magnifies every inefficiency. Regular feedback cycles with chemists and engineers sharpened our raw material specifications; our team now rejects input lots at the slightest off-odor or color drift.

    Getting temperature profiles right during bromination prevents both under-reacted phenol and over-brominated side-products. Over the years, troubleshooting batch reactors led to installation of modern jacketed vessels with continuous monitoring. Routine spot checks with in-line GC built confidence among both plant crew and longtime clients that QC reports match real chemical truth, not just ideal numbers.

    Packing and shipping also took their own learning curve. Early missteps—inadequate drum liners, heat exposure in outdoor storage—showed up as caked material at user sites. Tweaking to double-walled liners and discouraging stacking in hot warehouses solved much of this. Little improvements on the factory side cut losses and drove up usable yield for everyone downstream. Whenever client labs ran into clumping or faint smells, plant techs walked back through every step and found solutions together.

    Supply Reliability Only Comes with Real Transparency

    Supply interruptions shake up production schedules and throw project timelines into question. From experience, simply having material in stock means little if the batch profile changes or the data doesn’t match real chemical performance. Process chemists and plant engineers tell us often that predictable behavior across multiple lots counts more than incremental savings per kilo.

    We committed years ago to open data on every lot—chromatograms, impurity breakdowns, trace metal numbers—so partners know exactly what reaches their loading dock. Our staff stays reachable for questions right down to the smallest handling detail or test result; this builds trust over 'paper-perfect' certificates that sometimes show little about the real batch. Rigorous QC and hands-on technical support keep projects moving from early R&D to long-term commercial production.

    Environmental and Safety Realities

    Handling halogenated phenols calls for respect as well as compliance. Our factory team manages tight containment, dedicated ventilation, and careful charging of reagents so workplace exposure remains below accepted limits. Decades of industrial accidents across the industry have shown the risks of casual bulk transfers and loose controls—each adjustment in our process reflects hard-won lessons both on and off site.

    Disposal of rinsates and spent process water moves through specialist incineration or chemical neutralization. Greater tracking of waste streams meets both internal goals and growing external scrutiny. A number of our partners must document the full chemical journey, from drum acceptance through to final product shipment. We support these efforts, supplying the right handling and disposal protocols along with each delivery.

    The Future: Anticipating Industry Demands

    Process requirements evolve with new technology and tighter regulatory expectations. For 5-Bromo-2-Chlorophenol, we see this in the drive for traceable sourcing, consistent purity, and documented handling history. Access remains key—any delay or stock-out ripples through global pharma, agricultural, and specialty chemical supply chains. Our relationships with material suppliers and logistics partners reflect years of tested reliability and shared commitment to quality.

    Responding to end-user needs, we refine not only purity targets but also packaging volumes and shipment methods. Some production lines require kilogram-scale bottles; others draw off full drums or totes. Flexibility in packaging helps our material integrate cleanly into a wide range of process workflows, saving time and cost on user side repackaging and transfer.

    Continuous Improvement Gathers From Every Batch

    Every manufacturing run guides our next step forward. After each campaign, teams swap notes on purity trends, handling incidents, and end-use feedback. Recent investments in filtration and drying technology stemmed from a cluster of requests for even lower residual solvents. Monthly training for plant engineers and QC chemists pushes everyone up to speed as market standards shift.

    Adapting to both everyday problems and emerging technical demands keeps our process sharp. Feedback loops with long-term partners—who see both our material and competitors'—provide a clear picture of where we stand in the market. Benchmarking against international standards shows where our product surpasses minimums, and where more effort can squeeze out one more decimal of precision.

    Trust Built From Experience, Not Brochure Promises

    We value pragmatic solutions over corporate claims. Years of direct engagement with production and R&D teams have taught us that return business depends on reliability, technical transparency, and responsiveness more than on cost or marketing promises. Every drum or pail that leaves our site represents the cumulative effort of dozens of skilled workers—chemists, operators, engineers, and logistics staff—each focused on ensuring client batches run smoothly, safely, and efficiently.

    Demand for precise, well-documented intermediates like 5-Bromo-2-Chlorophenol only grows as industries shift to high-value, custom syntheses. Rather than treat this molecule as a commodity, we put in the work to refine and document each lot for real process compatibility. This approach transforms the chemical from an anonymous feedstock into a dependable building block for complex innovation.

    Listening to the Market, Adapting to Progress

    What matters more than technical jargon or sales claims is consistent two-way learning. Our manufacturing teams listen to feedback, not just from purchase orders but from R&D chemists and plant operators on the customer side. Whether it’s tweaks to mesh size, minimizing carrier solvent traces, or quick-response help with handling instructions, we keep our doors open to honest critique and new requests.

    With every year, customer expectations shift. Tighter tolerances on purity, new reporting standards for trace contaminants, and evolving analytical methods all push us to upgrade and refine. Staying ahead means not just tracking regulatory lists, but anticipating which performance characteristics will make or break the next process run. If a handful of parts-per-million sulfur or a persistent off-odor holds back a pilot batch, knowing that before shipment saves everyone time and cost.

    Conclusion: Value Gained from Direct Experience

    We stand by 5-Bromo-2-Chlorophenol because years on the line have bred confidence in its capabilities and practical compatibility. Its balanced reactivity, tailored application, and high-purity manufacturing support not just smooth internal processes, but also downstream partners worldwide adapting to ever-tighter standards. As industry demands shift, we remain committed to active improvement, rigorous documentation, and direct, responsive technical support. The product’s value grows out of continual investment in both people and process—a legacy measured batch by batch, not just by paperwork or claims.