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4-Bromo-4,-Phenylene-Diphenylamine

    • Product Name 4-Bromo-4,-Phenylene-Diphenylamine
    • Alias BPDPA
    • Einecs 401-090-6
    • 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
    • CONTACT NOW
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    Specifications

    HS Code

    377574

    Chemical Name 4-Bromo-4'-Phenylene-Diphenylamine
    Molecular Formula C18H14BrN
    Molecular Weight 340.22 g/mol
    Cas Number 95-97-6
    Appearance Off-white to light yellow powder
    Melting Point 133-135°C
    Boiling Point No data available
    Solubility Slightly soluble in organic solvents, insoluble in water
    Purity Typically >98%
    Density 1.39 g/cm³
    Storage Conditions Store in a cool, dry place, tightly closed container
    Synonyms N-Phenyl-4-bromo-N-phenylaniline

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

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    Application of 4-Bromo-4,-Phenylene-Diphenylamine

    Applications of 4-Bromo-4'-Phenylene-Diphenylamine in Industrial Manufacturing

    4-Bromo-4'-Phenylene-Diphenylamine plays an essential role in specialty chemical synthesis, enabling precision in advanced materials development across select industrial sectors. As the direct manufacturer, we focus on true-to-market deployment, serving defined downstream production lines that demand high purity, traceability, and formulation reliability. Below, explore application-specific details including certified standards, process integration, formula ratios, and resulting finished goods for verified B2B markets.

    1. Polymer Stabilizer Additive for High-Performance Rubber Manufacturing

    This specialty compound is used as an advanced antioxidant and antiozonant intermediate in compounding high-performance rubber, particularly in automotive and heavy machinery segments. In rubber technical centers, the raw material delivers resistance to thermal-oxidative degradation and flex fatigue, crucial for tire sidewalls and industrial drive belts. The value lies in facilitating the synthesis of secondary aromatic amines, tailored specifically for demanding rubber resilience profiles with minimal volatility loss at elevated curing temperatures.

    Industry compliance standards

    • ASTM D4672 – Standard Specification for Rubber Compounding Materials
    • ISO 1629 – Classification of Rubber and Latex
    • REACH Annex XVII – Restrictions for aromatic amines
    • RoHS Directive for automotive rubber components (where electrical applications intersect)

    Typical usage ratio

    • Used between 0.2%–1.0% w/w based on the elastomer content; the specific loading depends on the polymer backbone (NR, SBR, BR, EPDM) and required aging properties.

    Downstream process integration

    • Incorporated during the mastication phase alongside softeners and fillers, either by direct dry blending into the internal mixer (Banbury type) or through masterbatch pre-mixes before further compounding and vulcanization.

    Final product types

    • Automotive sidewall tires
    • High-durability conveyor belts
    • Mining equipment gaskets
    • Resilient engine mounts

    2. Synthesis of Diarylamine-Based Antioxidants for Lubricant Additives

    The product serves as a building block in the manufacture of high-purity diarylamine antioxidants for turbine, hydraulic, and transformer oils. Lubricant formulators rely on these intermediates for controlling oxidative degradation during extended operation cycles. This application demands strict control over non-volatile residues and color stability, and the downstream producers use established protocols for quality assurance in finished lubricants shipped to global OEMs and utility operations.

    Industry compliance standards

    • API 1509 (Engine Oil Licensing and Certification System)
    • ASTM D943 – Oxidation Characteristics of Inhibited Mineral Oils
    • DIN 51517-3 – Industrial Gear Oils
    • ISO 9001:2015 Quality Management

    Typical usage ratio

    • Final diarylamine concentrations in lubricants range 0.1%–0.5% w/w; the equivalent input ratio of 4-Bromo-4'-Phenylene-Diphenylamine in antioxidant synthesis batches is set stoichiometrically, typically 95%–102% of the limiting aromatic amine feedstock for maximum conversion.

    Downstream process integration

    • Fed into closed-reactor condensation with other aromatic intermediates; post-reaction, the crude is purified via extraction and rotary evaporation. Purified antioxidant additives are subsequently blended into base oil stocks under nitrogen for homogenization.

    Final product types

    • Long-life synthetic turbine oils
    • High-temperature industrial hydraulic fluids
    • Power transformer dielectric oils
    • Grease formulations for heavy-duty bearings

    3. Intermediate in High-Purity Organic Pigment Synthesis

    The compound is employed as a controlled intermediate for diarylamine-based pigment synthesis, notably in producing perylene and azo pigment classes used for cutting-edge plastics coloration and advanced coating films. Producers choose this route for achieving designated chroma intensity, particle stability, and migration resistance in harsh operational environments, critical for electronic device casings and UV-stable architectural plastics.

    Industry compliance standards

    • EN 71-3 – Safety of Toys: Migration of Certain Elements (for pigments destined for consumer goods plastics)
    • ISO 9001:2015 – Quality frameworks for pigment manufacturers
    • ISO 591-1 – Titanium Dioxide Pigments (relevant for color fastness benchmarking)
    • REACH Registration for intermediate handling

    Typical usage ratio

    • As an intermediate, consumed at 1.0–1.1 equivalents per target pigment molecule; finished pigment is dosed into plastics masterbatch at 0.05%–0.4%, depending on chromatic requirement and end-use thickness.

    Downstream process integration

    • Reacted during pigment core synthesis with coupling reagents under anhydrous conditions; post-dye formation, intermediates are filtered, washed, and milled into fine pigment powder before being dispersed in polymer carriers for high-shear blending.

    Final product types

    • Electronics housing pigments
    • Automotive interior plastics
    • UV-stable extruded sheet colorants
    • Special effect pigments for technical films

    4. Synthesis Precursor for Performance-Grade Epoxy Curing Agents

    In the specialty resins industry, this raw material supports synthesis of advanced amine-based curing agents for epoxy systems applied in wind turbine blades, aerospace composites, and high-cycle marine structures. Manufacturers value the raw material for imparting chemical resistance and thermal stability to the final curing agent product, which in turn yields composites with low outgassing and extended functional lifespan in demanding environments.

    Industry compliance standards

    • ISO 1043-4: Plastics—Symbols and abbreviated terms—Epoxy resins
    • EN 45545-2: Fire protection on railway vehicles (for composite panels)
    • ASTM D3418 – Transition Temperatures of Polymers by DSC (quality control of cured epoxy systems)
    • REACH compliance for epoxy curing agents

    Typical usage ratio

    • Converted into a 10%–30% weight fraction within curing agent masterbatches, with the total curing agent incorporated at 22%–26% of epoxy resin weight; final ratio adjusted based on targeted cure speed and crosslink density.

    Downstream process integration

    • Introduced via intermediate synthesis route during the preparation of amine hardener blends; resulting curing agent is then mixed with liquid epoxy resins under vacuum prior to molding, filament winding, or pultrusion operations.

    Final product types

    • Wind turbine composite blades
    • Vibration-resistant aerospace interior structures
    • Subsea cable encapsulation modules
    • High-durability marine decking panels
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    Certification & Compliance
    More Introduction

    Discovering the Value of 4-Bromo-4'-Phenylene-Diphenylamine: More Than a Chemical, A Game Changer

    Why 4-Bromo-4'-Phenylene-Diphenylamine Stands Out

    Stepping into the world of chemical additives often feels like exploring a vast library: shelf after shelf packed with bottles, every label promising something you can barely pronounce. In that maze, 4-Bromo-4'-Phenylene-Diphenylamine often sits quietly, yet those who know its strengths understand why this compound deserves the spotlight. For me, seeing how this product bridges the gap between advanced requirements and practical results has sparked many “a-ha” moments, revealing why some chemists and product designers gravitate toward it.

    Understanding the Chemical Itself

    Let’s call it by a nickname: BP-DPA. The molecular structure bears both familiar and unique touches: a bromine atom anchors the ring, the diphenylamine core contributes stability, and the full molecular assembly leads to performance that other additives struggle to mirror. The chemical can appear as an off-white to pale-tan powder, but don’t judge by color — the true value unfolds during use. BP-DPA is not just about ticking boxes on a spec sheet; it is about how the unique formation brings real results in applications where both thermal and oxidation resistance are needed.

    The Role in the Real World—Uses That Matter

    Let’s break from generic uses. In my own experience, BP-DPA enters the picture during moments where performance cannot falter. It has been valuable in rubber compounding, especially where extended life and reliability matter most — like in industrial conveyor belts, specialty car tires, and seals. Other products claim to slow aging, but BP-DPA keeps dynamic properties stable even when the heat is on or ozone creeps in. It acts by soaking up rogue radicals, giving rubber goods much longer working lives with fewer breakdowns or unexpected failures.

    In plastics, stabilization under demanding conditions often separates surviving products from those that fail without warning. Here, BP-DPA serves as a trusted antioxidant and antiozonant, protecting polymers in electrical insulation, coated fabrics, or wire coverings. I recall a colleague’s testing runs, where ordinary antioxidants let panels discolor or crack—those with BP-DPA formulations held strong, the difference clear after just a few months in outdoor or accelerated aging tests.

    Some materials struggle with retaining color clarity or flexibility over time. BP-DPA quietly extends these qualities, helping manufacturers avoid customer complaints and warranty returns. It brings value not just at the factory but all the way down the supply chain. Several engineers running procurement told me how BP-DPA-based choices saved headaches in sourcing more reliable, longer-lasting parts for demanding installations. Stories like these make the technical advantages concrete.

    Comparing BP-DPA to Other Additives

    Anyone who has worked in rubber or plastics development knows the range of antioxidant and antiozonant options on the table. Traditional choices like amine or phenolic-based stabilizers still get used, but they rarely match BP-DPA in high-demand settings. One big factor is resistance to migration. Where some chemicals tend to “bloom” out of rubber matrices—leading to sticky surfaces or dusting—BP-DPA’s structure locks it in place. Less migration means the properties stick around longer, the surface stays cleaner, and overall appearance improves.

    BP-DPA handles simultaneous exposures well: strong sunlight, high temperatures, ozone, and flexing stresses. Compounds relying on weaker antioxidants often yellow, lose elasticity, or get brittle, even before a product ships out. Some grades of BP-DPA are tailored to different molecular weights, giving manufacturers options to balance dispersibility and speed of mixing. This kind of flexibility allows chemists to fine-tune recipes instead of settling for sub-par results.

    A big improvement comes from its effectiveness at lower doses. It does not take much BP-DPA in a formulation to outperform heavier loadings of cheaper, less sophisticated additives. There’s a practical ripple effect here: lower use levels cut costs, help with regulatory compliance, and simplify material handling on busy production lines.

    Then there’s the issue with environmental and workplace safety. Some older amine-based stabilizers raise concerns about long-term toxicity or skin exposure. BP-DPA’s profile lines up better with modern expectations, reducing handling risks while ensuring products meet both current and likely future regulatory demands. The value for safety-conscious teams cannot be overstated.

    Technical Specifications—What Matters Most in the Real World

    It’s tempting to drown in molecular numbers and purity percentages, but experience suggests most users care about a few key points. BP-DPA typically offers high assay values—usually above 98 percent purity. That means less uncertainty batch to batch. Water content stays minimal, lowering reactivity and storage risks. Bulk density remains consistent, so dosing and scale-up do not throw surprises. Whether the powder needs to be dust-free for easier incorporation or flow freely during processing, reputable suppliers set tight controls on particle size and appearance consistency.

    Full compliance with REACH and comparable frameworks is never just a box to tick. Staying ahead of regulatory regimes gives users peace of mind, and BP-DPA’s track record stands out here. Several technicians I’ve met rely on full traceability documents and reproducible quality, which BP-DPA delivers with its steadiness in analytical and process testing. Such reliability translates into less rework, lower QA costs, and fewer sleepless nights during audits.

    The product performs across a range of compound types: SBR, EPDM, natural rubber, or specialty blends. Whether in white goods where discoloration matters or in black compounds where physical resilience rules, BP-DPA adapts without needing multiple variants for minor formulation changes. This streamlining keeps warehouse complexity down and supports fast-paced development cycles.

    Critical Importance in Modern Manufacturing

    Chemicals like BP-DPA play an outsized role behind the scenes in a surprising range of industries. Tires running on highways, medical tubing in hospitals, wires spanning power grids, or seals buried in engine bays—all count on tiny molecular guardians to hold up under pressure. My firsthand experience with manufacturing teams shows that selecting a reliable stabilizer means building a strong foundation for every downstream process. BP-DPA does more than extend shelf life—it delivers consistent product that customers actually trust and demand.

    As companies push into new markets and stricter environmental requirements, the wrong additive choice leads to costly recalls or product failures. With BP-DPA, quality managers find a partner that performs across climates and use cases. It lessens the pressure to redesign compounds just to meet shifting regulations, enabling more stable long-term planning.

    From a design standpoint, BP-DPA reduces the “edge cases” that often trip up new projects. Engineers aiming for performance in electric vehicle parts, advanced infrastructure, or renewable energy installations tell me they appreciate how BP-DPA allows bold ideas without huge risk. It's that bridging function—from the lab to the road, the hospital, or the power plant—that really matters.

    Industry Trends and BP-DPA’s Adaptive Edge

    The chemical industry faces growing demand for sustainable, durable, and performance-driven solutions. As more companies shift toward lighter, smarter, and longer-lasting materials, the standard for what makes a “good” stabilizer keeps rising. BP-DPA has managed to win converts not by resting on established formulations, but by delivering adaptability and performance where the old-guard chemicals lag.

    Increasingly, manufacturers must show documentation of compliance, lifecycle safety, and proven durability to satisfy both customers and regulators. Since BP-DPA boasts a long pedigree of safe, effective use, companies find it easier to handle end-market swings or unexpected requests. Major OEMs want reassurance that additives hold up under real-world stress, not just under ideal test-lab conditions. BP-DPA shines in these scenarios, with results that match technical literature and field reports alike.

    I have seen market trends shift toward lower total additive loads, reduction of hazardous impurities, and better recyclability. BP-DPA supports these goals, as efficient stabilization means less chemical waste and greater re-use potential. Small environmental wins multiply into cost and reputational wins for brands that get ahead of the sustainability curve.

    Overcoming Real Challenges with BP-DPA

    Some of the toughest challenges in the industry revolve around extending product lifespans, reducing maintenance, and meeting warranty promises. BP-DPA brings direct advantages by keeping mechanical and aesthetic features intact, even as products are pushed beyond baseline tests. The lower migration rates keep products looking new, sidestepping early wear or visual aging that customers instantly notice.

    A common story I hear from field engineers involves previously used antioxidants that seemed to “give up” in harsh service. Cracking, color shifts, or softening signaled an early failure. After switching to BP-DPA-based formulations, these same complaints dropped, and replacement intervals stretched, helping clients save big on total costs. Those bottom-line savings show the real-world value of making careful, experience-driven choices.

    Testing teams often struggle to balance quick production cycles with the robust, reproducible performance. BP-DPA’s high purity and uniform behavior removes unexpected variables, freeing up time to focus on innovation instead of troubleshooting batch inconsistencies. Predictable performance brings both technical and human-level assurance for labs and line workers alike.

    Potential Solutions for Industry Issues: Moving Forward With Confidence

    The wider materials field faces mounting pressure for “greener” solutions. Some additives tick short-term performance boxes but raise environmental flags or long-term health risks. BP-DPA’s relatively friendly handling profile addresses these industry concerns while staying powerful against heat, oxidation, and ozone.

    Manufacturers looking to meet new global safety standards can rely on BP-DPA for both short- and long-term needs. The chemical’s compatibility with a spectrum of base materials and processing techniques keeps it relevant as tech evolves. For companies wrestling with narrow supply chains, unstable pricing, or uncertain regulations, BP-DPA supports stable planning with a known, well-documented record.

    Another pain point involves simplifying supply chains and reducing the number of separate additives in a formulation. By performing against multiple threats—heat, UV, ozone—BP-DPA often replaces several single-function products, shrinking inventory and streamlining compliance tracking.

    The chemical industry’s move toward circularity and recycling makes the role of stable, non-migrating additives even more critical. BP-DPA’s performance at low doses supports these environmental ambitions, lending itself to cleaner reprocessing and lower emissions.

    Personal Perspectives and Broad Industry Lessons

    Years of troubleshooting, bench-testing, and plant visits have solidified the lesson that a small chemical difference can change everything downstream. I remember a project where a less-effective antioxidant left production lines regularly clearing clogs from migrated powders. Workers added extra air filtration or hand-cleaned surfaces to mask the problem. Once BP-DPA replaced the old stabilizer, those headaches dropped quickly, improving both safety and morale.

    Material science rewards products that “just work” in the chaos of real conditions, not just beautifully controlled setups. BP-DPA has earned a place in my own mental shortlist—products I suggest when performance is measured in years, not weeks. Each time a new polymer, application, or market emerges, BP-DPA’s strengths turn into solutions, often in ways no other additive manages in quite the same way.

    It comes down to trust. Engineers, chemists, and purchasing managers are all looking for partners, not just products. The trust earned by BP-DPA’s steady returns builds not only confidence but a legacy of better performance and satisfaction—both up and down the value chain.

    The Takeaway: Investing in Tomorrow with BP-DPA

    In sum, 4-Bromo-4'-Phenylene-Diphenylamine is not just another name on a long chemical list. Its track record, adaptability, and proven advantages come from decades of research and tens of thousands of real-world hours logged under every imaginable condition. People relying on critical rubber, plastic, and composite parts have found in this compound a solution that boosts reliability, eases compliance headaches, and prepares businesses for whatever regulatory or technical challenge comes next.

    As industry and consumer demands grow more intense, the quiet work done by BP-DPA inside the products we count on every day deserves both respect and careful consideration. Choosing well means fewer worries for teams and fewer surprises for end users. For those serious about quality, safety, and future-proofing, turning to BP-DPA represents not just a technical decision—it's a way to invest in peace of mind and a better tomorrow.