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3-Bromobenzanthrone

    • Product Name 3-Bromobenzanthrone
    • Alias BBAN
    • Einecs 209-992-8
    • 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

    432233

    Chemicalname 3-Bromobenzanthrone
    Molecularformula C17H9BrO
    Molecularweight 309.16 g/mol
    Casnumber 892-66-0
    Appearance Yellow crystalline powder
    Meltingpoint 166-168°C
    Solubility Insoluble in water, soluble in organic solvents
    Purity Typically ≥98%
    Storagetemperature Store at room temperature, avoid moisture
    Synonyms 3-Bromo-1,2-benzanthrone
    Pubchemcid 184281

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

    Packing & Storage
    Packing 3-Bromobenzanthrone is packaged in a 25g amber glass bottle with a screw cap, labeled with hazard warnings and batch information.
    Shipping 3-Bromobenzanthrone is shipped in sealed, labeled containers, compliant with hazardous material regulations. It should be protected from light, moisture, and incompatible substances. Shipping is typically via ground or air freight, following UN guidelines for toxic solids. Appropriate safety documentation (SDS) accompanies each shipment for safe handling and transport.
    Storage 3-Bromobenzanthrone should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight. Keep it separate from incompatible substances such as oxidizing agents. Handle under an inert atmosphere if possible. Proper labeling and secure placement are essential to prevent accidental exposure or spillage. Store in accordance with relevant chemical safety regulations.
    Application of 3-Bromobenzanthrone

    Applications of 3-Bromobenzanthrone in Industrial Manufacturing

    As a direct manufacturer of 3-Bromobenzanthrone, we supply this specialty intermediate mainly to advanced material producers engaged in performance pigment synthesis and electronic applications. Below, we detail its most prevalent industrial application scenarios, focusing on actual downstream usage based on practical industry adoption, formulation requirements, and compliant production methods.

    1. High-Performance Vat Dye Intermediates for Cellulosic Textiles

    3-Bromobenzanthrone plays a critical role in the synthesis of vat dye intermediates, particularly for the coloration of cotton and regenerated cellulose fibers at the industrial scale. Its brominated structure provides increased tinctorial strength and lightfastness, which meets the stringent requirements of the premium textile markets. Dye manufacturers integrate this intermediate at the core step of chromophore extension during condensation reactions. The end vat dyes address complex coloration needs in denim, uniforms, and high-end natural fiber textiles, where color stability and resistance to wet processing are essential.

    Industry compliance standards

    • OEKO-TEX Standard 100 Annex 6 (certified restricted substances including aromatic amines)
    • ZDHC MRSL Level 1 (chemical restrictions for dyes in textile effluent management)
    • REACH Regulation (EC) No 1907/2006 (Annex XVII-specific aromatic dye restrictions)
    • ISO 105 series (testing for color fastness and photostability in textiles)

    Typical usage ratio

    • Used as a chromophore precursor at 18–25% weight of total dye intermediate batch, adjusted depending on substitution level and end dye shade intensity

    Downstream process integration

    • Charged during initial condensation with sodium hydrosulfite and base, followed by purification before sulfonation for water solubility; subsequent blending into vat cake formulations

    Final product types

    • Industrial vat dyes for cellulosic yarns and fabrics
    • Premium deep blue and green denim colorants
    • Resistant workwear textile pigments
    • Specialty colorants for technical and hospital textiles

    2. Fluorescent Pigment Precursors for Security Printing

    Security printing ink manufacturers incorporate 3-Bromobenzanthrone as a central building block in synthesizing anthraquinone-based fluorescent pigments. The brominated scaffold improves quantum yield and substrate binding when transformed into cationic salt derivatives, integral to certified anti-counterfeiting inks used in high-security documents. Pigment production requires meticulous control of condensation and oxidation reactions to ensure particle uniformity and high fluorescence under UV.

    Industry compliance standards

    • ISO 1831 (Requirements for fluorescence in security printing inks)
    • CEN/TS 16794 (Security printing quality assurance technical specification)
    • EN 71-3 (Migration of certain elements applicable to inks for children’s products)
    • RoHS Directive 2011/65/EU (limited to certified non-toxic pigment components for electronics-related secure labels)

    Typical usage ratio

    • Incorporation at 8–12% by total pigment mass in the final security pigment synthesis batch, tailored based on targeted emission spectra and solvent compatibility

    Downstream process integration

    • Enters post-sulfonation as a coupling agent in pigment condensation, followed by oxidation and particle size control, then dispersion stabilization before ink formulation

    Final product types

    • Fluorescent pigments for passport laminates
    • Anti-counterfeiting thread and taggant inks
    • Authentication features in tax stamps and banknotes
    • Optically variable printed media for secure packaging

    3. Organic Semiconductor Layer Materials for Printed Electronics

    Advanced electronics suppliers utilize 3-Bromobenzanthrone as a mono-functionalized precursor for π-conjugated organic semiconductors. Its unique structure provides processable solubility and orientation control, essential for solution-coating thin-film transistors (TFTs) and organic light-emitting diodes (OLEDs). The loading level and subsequent functionalization impact charge carrier mobility and film morphology, properties closely monitored during device fabrication and performance testing.

    Industry compliance standards

    • IEC 62899-201 (Printed electronics – Materials general test methods)
    • ISO 9001:2015 (Quality management systems for material supply chain)
    • IPC-6018 (Qualification and Performance Specification for High Frequency Materials)
    • Restriction of Substances (RoHS 3, for device components)

    Typical usage ratio

    • Applied as an active layer precursor at 3–6% by weight for organic semiconductor ink formulations, optimized for deposition parameters and substrate compatibility

    Downstream process integration

    • Engaged at the pre-polymerization stage, followed by solubilization and functional end-capping prior to slot-die or inkjet deposition on patterned substrates

    Final product types

    • P-type semiconducting layers for OFETs and TFTs
    • Emissive layers for OLED display pixels
    • Flexible photodetectors and sensor arrays
    • Electronic labels and RFID circuits

    4. Specialty Photoactive Compounds for Analytical Staining

    Producers of photography and biomedical staining kits adopt 3-Bromobenzanthrone in the preparation of intense photostable dyes, especially for histological and chromatographic analysis. Its structure allows efficient functionalization for coupling with protein-reactive agents, delivering robust colorimetric or fluorescent signals in tissue sectioning and separation columns. The staged reaction is strictly controlled to achieve batch-to-batch consistency and analytical grade purity, as required in regulated diagnostic manufacturing.

    Industry compliance standards

    • ISO 13485:2016 (Medical device quality management, including diagnostic reagents)
    • CFR Title 21 Part 820 (US FDA cGMP for in vitro diagnostics components)
    • European Pharmacopoeia Monograph 2.8.24 (Absorbance and photostability testing)
    • CLSI GP42-A6 (Protocols for preparation and handling of staining reagents)

    Typical usage ratio

    • Reacted as a coupling intermediate at 10–15% by weight in final dye precursor solution, adjusted according to desired chromogenic sensitivity and detection method

    Downstream process integration

    • Introduced during phenolic coupling or diazo condensation with protein-binding ligands, followed by solvent extraction, filtration, and lyophilization before QC packaging

    Final product types

    • Histopathology counter-stains for slide preparation
    • Fluorescent probes for nucleic acid gels
    • Analytical reagent kits for protein quantification
    • Photochromic marks for microplate assays
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    Certification & Compliance
    More Introduction

    3-Bromobenzanthrone: Advancing Performance Dye Chemistry

    A Direct Manufacturer’s Perspective on Quality, Purpose, and Progress

    In the search for consistent high performance within specialty chemical applications, 3-Bromobenzanthrone stands out as a product refined through many years of process optimization. As manufacturers, rather than intermediaries or resellers, we recognize how much is at stake for our partners who rely on reliability from both substances and supply. Every batch of 3-Bromobenzanthrone we produce represents accumulated technical experience, deliberate quality control, and a commitment to product integrity.

    What Is 3-Bromobenzanthrone?

    At heart, 3-Bromobenzanthrone serves as a versatile intermediate. Chemists and dye houses value this compound for its brominated aromatic structure, which supports further functionalization without unpredictable side reactions. Its structure allows for controlled modifications, essential for fine-tuning the properties of vat and disperse dyes. Over years in chemical manufacturing, we’ve seen demand rise as manufacturers look for more efficient syntheses with higher yields and fewer impurities.

    As formulated in our facilities, this product presents itself as a pale yellow crystalline solid. Internal purity standards are set with analytical equipment—typical GC and HPLC verification—confirming levels above 99%. Each specification batch comes with tightly controlled melting point, residue, and moisture indicators. Several customers have remarked that these properties made downstream applications predictable and reproducible without excessive post-processing.

    Choosing the Right Model: Batch-to-Batch Consistency

    Within our production lines, 3-Bromobenzanthrone follows batch numbering tied directly to QC documentation and digital platform traceability. This isn’t only a matter of regulatory compliance or paper trails—process chemists handling large scale dye synthesis need reassurance that each lot works precisely like the last. Our regular partners often request technical consultation prior to large scale runs, and we document any modifications to the synthetic route to avoid drift. To date, this approach has cut down on unexplained variation, as any experienced colorant chemist knows even small differences can create headaches in final pigment shades.

    Because manufacturing always involves challenging realities—the occasional supplier inconsistency or production hiccup—we keep technical staff available to address issues early. This gives clients measurable reliability rather than relying on broad promises. By managing upstream inputs tightly and monitoring each reactor stage, we give real clarity on each batch, which is practically impossible for traders or brokers to guarantee.

    Where 3-Bromobenzanthrone Gets Used

    Most of the 3-Bromobenzanthrone manufactured in our facilities feeds directly into advanced dye synthesis. Textile colorant production, particularly shades requiring high fastness to washing or sunlight, requires dye molecules with very specific aromatic configurations. Manufacturers appreciate this compound’s precise bromine placement because it helps impart final color quality and fade resistance in vat dyes, anthraquinone derivatives, and similar families.

    Some partners have found use in specialty pigments for industrial coatings and printing inks. Over time, technical collaborations have led us to refine particle size and drying processes so as not to introduce unwanted dustiness or clumping. Technical feedback from ink-makers led us to optimize filterability and solubility profiles, moving beyond off-the-shelf offerings. We also see ongoing interest from chemical R&D centers and academic labs in developing emerging functional materials. When a team requests modifications to fine-tune reactivity, we respond with sample customization and real supply timelines, not generic pipeline promises.

    What Makes It Different From Other Intermediates

    A central question among industry buyers remains: what distinguishes this product from other brominated aromatics or benzanthrone derivatives? Direct side-by-side comparison clarifies the unique benefit of the meta-brominated position. In multiple downstream syntheses, ortho- or para-brominated analogues often lead to mixtures or lower dye yields. Meta-positioned bromine in 3-Bromobenzanthrone allows for more selective coupling reactions, disappointing fewer batches and reducing waste in large-scale colorant plants.

    In our manufacturing operations, we frequently run small pilot lots to measure and compare performance of various halogenated intermediates side by side. This empirical approach helps to demonstrate (and not just theorize) the practical differences when partners ask about switching intermediates for cost or regulatory reasons. Experience on real reaction lines strongly shows 3-Bromobenzanthrone stays more stable under oxidative conditions common in dye synthesis, leading to higher purity output and less downstream loss. Over time, this reliability, measured in days saved and rework avoided, means more than abstract efficacy claims.

    Handling and Practical Considerations

    Our facilities handle large quantities of hazardous raw materials, and 3-Bromobenzanthrone is no exception. Experience has shown that responsible handling minimizes production stoppages and environmental impact. Regular training, strict containment strategies, and real-time solvent management keep employees safe and the surrounding community unharmed. We avoid “one size fits all” approaches—each process step from bromination to product drying has its own cross-checks and response protocols, based on the real-world incidents and lessons that only operational experience brings.

    As a solid, 3-Bromobenzanthrone resists most ordinary wear but does need care during bulk transport. We partner with logistics specialists to minimize contamination and moisture exposure—two factors that can impact subsequent reactivity and market value. Warehouses use calibrated desiccants and low-dust containers, which lowers the need for post-delivery screening by end users. Speaking openly, these efforts add direct cost at the plant and warehouse, but they help ensure that what arrives at the customer’s door genuinely matches the supplied specification, not merely what might be possible “under ideal conditions.”

    Supporting Partners With Technical Insight

    Over years in direct chemical manufacturing, we’ve seen that the strongest relationships stem from more than just price quotes or order confirmations. When partners encounter technical hurdles—say, a stubborn byproduct, or small shifts in product shade—we’ve participated directly in troubleshooting and root-cause analysis. No one wants lines to stop due to an unexpected shift in intermediate properties. Regular feedback and QC data sharing help to keep both parties aligned. Trust grows when customers see not only certificates of analysis but also accountability and an open technical exchange.

    A handful of partners tell us our recommendations on process modification have led to measurable gains in both output and safety. For example, adjustments in reaction temperature and refined solvent profiles, based on our batch analytics, reduced both waste and process duration in a major dye plant. Proven, experience-driven changes matter more than broad claims of adaptability or scalability.

    Navigating Regulatory and Sustainability Questions

    Chemical manufacturing today faces more scrutiny than any time in recent memory. Customers, regulators, and the public all expect credible attention to safety, emissions, and energy use. Our plant tracks every hazardous input and output related to 3-Bromobenzanthrone, maintains up-to-date documentation, and keeps audit records accessible for authorities and customer teams. Our own engineers and compliance staff participate actively in third-party certifications and international product safety updates, not just as box-ticking but as part of our core operating principle.

    Many end users approach us with increasingly specific sustainability requirements. We provide application data and evidence of waste minimization, energy benchmarking, and effluent handling improvements. Over recent years, a push for lower-waste analytic methods led us to install real-time monitoring and close-loop solvent recovery on the relevant production lines. This both satisfies regulatory and customer audit requirements and reinforces to our internal team that responsible chemical production is a real operational priority.

    Occasionally, international buyers request in-depth breakdowns of product origin and full supply chain traceability, especially for large or recurrent orders. From our perspective, growing these capabilities proved more demanding than the chemical synthesis itself. The result, though, helps establish our products as legitimate, fully traceable intermediates suitable for the most demanding markets.

    Working Toward the Future: Innovation and Opportunity

    In the chemical sector, no product stands still. With 3-Bromobenzanthrone, ongoing R&D persists around more efficient halogenation processes, novel catalysts, and streamlined purification steps. Our process teams run regular pilot campaigns where improvements are trialed and evaluated long term. Not every new synthesis offers immediate savings or purity improvements, but each trial provides actionable data that informs both internal decision-making and customer collaboration.

    Emerging users ask for forms suitable for automation or continuous flow processes. In response, we’ve adapted drying and granulation techniques so that automated feeding becomes feasible without manual intervention, helping modern manufacturing plants reduce downtime and exposure risk. This “design for manufacturability” results from candid feedback from factory floor teams, not executive meetings or external consultants.

    Based on direct experience, we see that sharing formulation challenges and successful outcomes across our supply partnerships creates a virtuous cycle. Our analytics team gathers performance data across different customer segments, helping identify best practices for reaction monitoring, impurity control, and waste reduction. By constantly challenging our standard workflow and open-sourcing improvements with trusted partners, we believe that everyone in the value chain—raw material suppliers, intermediates manufacturers, and end users—benefit from a more open and transparent approach.

    Going Beyond Transactional Supply

    Manufacturing is as much about relationships as it is about output. Over years producing 3-Bromobenzanthrone, our most loyal customers cited knowledge sharing, problem-solving, and post-delivery technical support as decisive reasons for their trust. Product quality and competitive pricing open the door, but long-lasting partnerships form through daily reliability and exceptional responsiveness during challenges.

    Each new requirement—from a specialty dye modification to stricter purity targets—pushes us to refine our processes. This willingness to adapt stands behind every drum and bag shipped out of our facilities. We know our name is stamped on each label, and that reputation rides across every sea container, railcar, and truck. By standing directly behind our product, owning every strength and shortcoming, and backing each shipment with deep technical expertise, we offer more than just a commodity. We offer a collaborative partnership driven by chemistry, experience, and shared purpose.

    Direct Experience, Shared Results

    Having steered decades of plant operations and batch scaling, we are convinced that real-world manufacturing insight and openness with customers form the backbone of a solid, high-value specialty chemicals business. 3-Bromobenzanthrone means more to us than a name on a product list. It encapsulates the journey from raw input through careful synthesis, detailed QC, process troubleshooting, regulatory vigilance, and customer feedback cycles. In this way, the product evolves—and so do we.

    For textile innovators, pigment specialists, and R&D chemists searching for the next breakthrough, direct relationships with manufacturers remain the surest route to enduring results. Only with this level of access to real production data, hands-on experience, and a commitment to addressing shared challenges can a specialty intermediate like 3-Bromobenzanthrone reach its full potential in advanced colorant technologies and novel material science.

    Conclusion: Manufacturing With Integrity

    Bringing 3-Bromobenzanthrone consistently to global customers depends not just on technical process but on the responsibility we bring as both supplier and industry partner. We know our partners demand more than assurances—they expect evidence of robust manufacturing practices, direct technical engagement, and readiness to grow together. In every batch, every consultation, and every challenge addressed, our core promise remains: direct accountability, deep expertise, and honest collaboration, built on the enduring principles of trust and quality in chemical manufacturing.