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3-Bromo-1,8-Naphthalene Anhydride

    • Product Name 3-Bromo-1,8-Naphthalene Anhydride
    • Alias 3-Bromo-1,8-naphthalic anhydride
    • Einecs 613-732-3
    • 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

    499023

    Product Name 3-Bromo-1,8-Naphthalene Anhydride
    Cas Number 51535-42-7
    Molecular Formula C12H5BrO3
    Molecular Weight 277.07
    Appearance Off-white to light yellow solid
    Melting Point 247-250°C
    Purity Typically ≥98%
    Solubility Slightly soluble in organic solvents
    Smiles O=C1OC(=O)c2cccc(Br)c2C1
    Inchi InChI=1S/C12H5BrO3/c13-8-3-1-2-6-4-10(12(15)16-11(6)14)7-5-9(8)12/h1-5,7H
    Storage Temperature Store at room temperature, protected from moisture
    Synonyms 3-Bromo-naphthalene-1,8-dicarboxylic anhydride
    Hazard Statements May cause skin and eye irritation

    As an accredited 3-Bromo-1,8-Naphthalene Anhydride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 3-Bromo-1,8-Naphthalene Anhydride

    Applications of 3-Bromo-1,8-Naphthalene Anhydride in Industrial Manufacturing

    As a manufacturer specializing in naphthalene-based intermediates, we provide 3-Bromo-1,8-Naphthalene Anhydride to support precision synthesis across several high-value downstream sectors. The sections below detail the distinct industrial application scenarios validated by consistent large-scale demand, documented compliance, and frequent customer implementation in international markets.

    1. High-Performance Pigment Intermediates for Organic Colorants

    In the production of perylene and naphthalene-based colorants for plastics, inks, and high-grade coatings, this compound functions as a key halogenated building block. The brominated anhydride permits controlled halogen introduction, resulting in improved pigment fastness and specific hue adjustment. Customers in this segment optimize their pigment precursors for automotive coatings, plastic masterbatch, and printing inks by carefully modulating the anhydride loading according to the desired color depth and processing method.

    Industry compliance standards

    • EN 71-3 (Safety of toys — migration of certain elements)
    • REACH Regulation (EC) No 1907/2006 (Annex XVII restrictions on aromatic amines in dyes)
    • ISO 9001 Quality Management for colorant manufacturing
    • ASTM D3134 (Standard Test Method for Chromium, Cobalt, and Nickel in Pigments and Paints)

    Typical usage ratio

    • Rangess from 5% to 20% by weight in naphthalene diimide or perylene pigment intermediate synthesis; formulation depends on target bromine incorporation and final pigment class.

    Downstream process integration

    • The brominated anhydride is introduced during the initial condensation or imidization reaction with aromatic amines or diimides. This step determines halogen content and defines color stability and performance parameters. Precise dosing at the early stage ensures consistent halogen layout in the core molecule.

    Final product types

    • Perylene-based automotive and industrial pigments
    • Naphthalene diimide pigments for high-durability plastics
    • High-performance inkjet and offset printing inks
    • Color masterbatch for polymer extrusion

    2. Advanced Electronic Materials: Organic Semiconductors and OFETs

    Electronic materials manufacturers employ this intermediate as a precursor in synthesizing naphthalene diimide derivatives for organic field-effect transistors (OFETs) and related semiconducting applications. The bromine position and functionality on the anhydride core allow for subsequent cross-coupling reactions, critical for tuning electron mobility and film morphology in organic electronics. Detailed quality and traceability documentation are required by customers engaged in pilot line production and upscaling.

    Industry compliance standards

    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in electrical and electronic equipment)
    • JEDEC JESD22 (General reliability test methods for semiconductor devices)
    • IATF 16949 (Automotive Quality Management System, when integrated in vehicle sensors)
    • ISO 14001 (Environmental Management for electronic chemicals)

    Typical usage ratio

    • Usage typically ranges from 7% to 15% by weight relative to the total organohalide charge, adjusted based on molar equivalency in Suzuki or Stille coupling reactions for semiconductor backbone assembly.

    Downstream process integration

    • Material enters during precursor synthesis and monomer assembly for organic semiconductors. Brominated anhydride is reacted with key aromatic compounds at the stage preceding polymerization or thin-film deposition, allowing precise control over molecular structure and electronic properties.

    Final product types

    • n-type organic semiconductors for OFETs
    • Dielectric interface materials
    • Thin-film organic photovoltaic cell components
    • Flexible display transistors

    3. Pharmaceutical Intermediate for API Synthesis

    Within fine chemicals and pharmaceutical manufacturing, 3-Bromo-1,8-Naphthalene Anhydride serves as a versatile precursor for the targeted construction of polycyclic aromatic scaffolds in investigational and generic APIs. Its selective reactivity and ability to introduce bromine atoms at defined positions are valuable for the synthesis of specialty intermediates used in antitumor, antiviral, and anti-inflammatory research compounds. Documentation for trace impurities, cross-contamination, and synthesis batch records forms a core compliance requirement.

    Industry compliance standards

    • ICH Q7 (Good Manufacturing Practice for Active Pharmaceutical Ingredients)
    • USP–NF and Ph. Eur. monographs for aromatic intermediates
    • 21 CFR Part 211 (Current Good Manufacturing Practice for Finished Pharmaceuticals)
    • ISO 17025 (Analytical laboratory qualification, used in QC release)

    Typical usage ratio

    • Generally utilized at 3–12 mol% in multi-step API synthesis pathways; precise amount depends on required bromination levels and downstream functionalization steps within target molecule design.

    Downstream process integration

    • Introduced during early intermediate formation, typically in stepwise condensation or cyclization, where selective bromination of polyaromatic precursors is required before further functional group elaboration or heterocycle formation.

    Final product types

    • Polycyclic API intermediates for oncology research
    • Antiviral intermediate compounds
    • Custom fine chemicals for contract pharmaceutical synthesis

    4. Organic Catalyst Synthesis for Industrial Oxidation Processes

    Producers of specialty oxidation catalysts use this anhydride as a core structure to access functionalized diimide and perylene-based catalysts. The bromine substituent acts as a reliable synthetic handle for constructing tailored ligand frameworks, enabling customization of catalyst redox potential and substrate interaction in large-scale petrochemical and fine chemical oxidation. Consistency in purity and control of halogen content are essential to meet process efficiency standards.

    Industry compliance standards

    • ISO 9001 (Quality for catalyst formulation)
    • Process Safety Management (29 CFR 1910.119, when used in petrochemical plant settings)
    • Responsible Care® Management System (for chemical environmental health and safety)
    • REACH Registration (when catalysts are exported within the EU)

    Typical usage ratio

    • Normally charged at 4–10% by weight of total ligand precursor load, adjusted for the required ligand density or the final catalyst’s specific activity in oxidation cycles.

    Downstream process integration

    • The anhydride forms the backbone for catalyst ligand synthesis, typically in the initial condensation or halogen exchange. It is later integrated into the catalyst active site via post-condensation functionalization and complexation with metal centers.

    Final product types

    • Perylene diimide-based oxidation catalysts
    • Halogenated aromatic catalysts for selective oxidation
    • Precatalysts for fine chemical manufacturing
    • Support-bound ligand systems for flow reactors

    5. Specialty Fluorescent Dye Manufacture for Analytical Reagents

    Manufacturers specializing in high-sensitivity fluorescent dyes select this intermediate in processes where precise halogenation of the naphthalene scaffold is necessary to achieve specific photophysical properties. This compound enables preparation of stable, photochemically tunable dyes for use in biomedical imaging and analytical assay kits. Control over source traceability, as well as compliance with analytical reagent standards, is critical in this application.

    Industry compliance standards

    • ISO 13485 (Medical devices — Quality management for dye reagents)
    • US FDA 21 CFR 864 (In vitro diagnostic products)
    • DIN EN ISO 11737 (Sterilization and bioburden testing, for medical dye use)
    • REACH Substance Evaluation for specialty dyes (when applicable in analytical kits)

    Typical usage ratio

    • Usually charged at 2–8% by weight in fluorophore synthesis reactions, altered according to the desired fluorescence wavelength and specific application (e.g., flow cytometry, microscopy).

    Downstream process integration

    • The brominated intermediate is introduced at the core dye assembly step, where controlled halogen functionalization determines the photophysical properties and final spectral profile. Followed by coupling with linker arms or solubilizing groups depending on the final product format.

    Final product types

    • Fluorescent dyes for cell staining kits
    • Probe molecules for clinical laboratory reagents
    • Analytical reference standards for chromatography
    • Specialty imaging agents for research diagnostics
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    More Introduction

    Introducing 3-Bromo-1,8-Naphthalene Anhydride: A Modern Essential for Advanced Synthesis

    Breaking Ground in Organic Chemistry

    3-Bromo-1,8-Naphthalene Anhydride sits at the crossroads of rigorous scientific effort and real progress in chemistry. Born from the continuing search for reliable intermediates, this compound finds its way into research labs and commercial processes due to its predictable reactivity and its helpful structure. Many of us who have spent hours tending a flask or puzzling over a reaction yield know the value of a reagent that delivers as promised.

    Specification and Structure: Clarity Where It Counts

    Looking at 3-Bromo-1,8-Naphthalene Anhydride in the beaker, you notice its slightly yellowish appearance. Its formula brings together bromine and an anhydride function on a naphthalene backbone, making it a staple for those working at the edge of aromatic chemistry. In practice, the product comes as a high-purity powder or crystalline solid, which makes handling straightforward. Long hours in research have shown that impurities stall progress, so the industry often sets purity targets above 98%. Other specs—moisture content, melting range—tend to follow, but what draws attention is how uncompromising the standard remains.

    Every handling step—storage, weighing, dissolving—feels familiar for anyone who's worked with small-molecule organics. Stability isn't just a box to tick for compliance, either. It allows storage at room temperature for reasonable periods, freeing bench space for more pressing projects. Several chemists I’ve spoken to mention that a compound like this, which resists clumping and doesn't form stubborn aggregates, brings less headache to experiment design.

    Why 3-Bromo-1,8-Naphthalene Anhydride Finds Its Place

    In the real world, most purchases stem from a direct need. Research and production teams hunting specialty building blocks for aromatic compounds often gravitate toward this anhydride when a halogenated intermediate beats out other candidates. It shows its worth in fields such as advanced materials science, dye synthesis, and the intersection of electronics and chemistry, where the unique arrangement of atoms unlocks options for further functionalization.

    The bromine atom opens doors for cross-coupling reactions, bringing classic methods like Suzuki or Stille coupling into play. Chemists often see this as a shortcut to forming new carbon-carbon bonds in a controlled way. By having the anhydride group at the 1,8- positions, users can achieve substitutions with a cleaner selectivity profile compared to some of the older halonaphthalene reagents, which often force complicated protection strategies. There’s relief in skipping a two-day work-up or avoiding a challenging purification step thanks to a well-designed molecule.

    Practical Usage: Beyond the Desk and Into the Flask

    People turn to 3-Bromo-1,8-Naphthalene Anhydride for a handful of projects. I remember the early days wrestling with cumbersome routes to naphthalene imides or polyaromatic dyes for device testing. In those moments, a step up in reagent design cut days off timelines. This compound slips neatly into reactions building naphthalene diimides, which hold serious promise in organic electronics and as building blocks for more complex macrocycles.

    Consistency matters: A lot can go wrong between paper and practice. Maybe you’re targeting a new functional dye, maybe it’s a ligand for a catalysis system, or a test substrate for mechanistic studies. The reliability of a starting material often dictates the end result, and researchers have built a quiet trust in intermediates known to behave across scales. Through repeated cycles, 3-Bromo-1,8-Naphthalene Anhydride lands as a go-to ingredient for users aiming for efficiency with less troubleshooting.

    Another boost comes from its compatibility with diverse reaction conditions. Whether you’re running a classical solution-phase process or scaling up for a semi-continuous run, this compound adapts. Years spent adjusting solvents, juggling bases, and dialing in stirring speeds all hint at one truth: flexible intermediates support creative organic synthesis.

    Comparisons: How This Anhydride Sets a Distinct Path

    You see plenty of brominated naphthalene derivatives on catalogs, but few carry both the selectivity and reactivity of the 1,8-anhydride. Some researchers opt for similar halonaphthalene starting materials, like 1-bromo- or 2-bromo-naphthalene, only to realize the increased burden later in purification or functional group manipulation.

    Standard naphthalic anhydrides, which lack the bromine, have limited reach in targeted cross-coupling and functionalization steps. Anyone who's tried direct C-H activation on these frameworks learns the hard way: sometimes the missing bromine blocks the route to more complex targets. The addition of the bromine atom at position 3 streamlines access to compounds that would take multiple extra steps using older techniques, trimming down both reagent cost and experiment time.

    From my own time in the lab, switching over to 3-Bromo-1,8-Naphthalene Anhydride rescued several projects that were stuck due to stubborn, low-yielding reactions. The molecule stands out among alternatives not just for chemistry’s sake, but because of its real impact on time management. Even skilled synthetic chemists need more than brute force and good intentions to move a reaction to completion with high selectivity. More predictable reactivity means fewer surprises in scale-up and a more straightforward analytical profile, which helps meet regulatory and journal publication standards.

    Meeting the Demands of Modern Research

    Emerging research on organic electronics, functional dyes, sensors, and even light-harvesting assemblies increasingly calls for robust, halogenated aromatic intermediates. The design of new naphthalene diimides for photovoltaic or transistor applications often starts with halogenated anhydrides that set up key transformations. Studies from industrial partners highlight how products sourced from reliable synthetic routes bolster reproducibility in their programs.

    Anecdotes from academic teams echo the same pattern: A compound like 3-Bromo-1,8-Naphthalene Anhydride provides the scaffold needed for making libraries of functional materials, each one with finely-tuned electrochemical or optical properties. In fields pressing toward custom organic semiconductors or responsive probes for biology, small improvements at the intermediate level ripple forward in practice.

    Students and postdocs working at the benchtop run up against the same challenges every day. Precision in reagents limits wasted time and uncertain results. Between late nights planning routes and early mornings analyzing spectra, knowing the starting material delivers its promised purity gives a research group room to focus on bigger questions. Peers repeatedly point out that access to a molecule like this changes how quickly new findings reach publication, or whether a grant proposal even has a shot.

    Supporting Best Practices: Transparency and Safety

    Drawing from my own experience, picking the right reagent often involves more than performance. A researcher trusts not just the chemical, but also the information that comes with it—specs confirmed by real certificates of analysis, handling guidance backed by testing, transparent sourcing. It promotes a culture of openness in the lab, where no one sacrifices safety or clarity for speed.

    3-Bromo-1,8-Naphthalene Anhydride brings recognizable safety considerations if you’ve handled aromatic bromides: gloves, eye protection, decent ventilation. Most protocols for anhydrides involve controlled moisture and avoiding open handling. Here, it behaves much like its relatives, yet the information available supports risk assessment and good lab habits. I’ve seen newer group members gain confidence quickly with reliable briefing, preparing them to run bigger reactions with more autonomy. That culture trickles down through entire research teams and supports E-E-A-T principles, especially in an era where one mistake can ripple through weeks of work.

    Addressing Common Pain Points

    A product can shine in publications yet falter on the bench if consistency or support lags behind. Many synthetic chemists share frustration dealing with off-brand reagents: unexpected polymorphs, trace metal contamination, ambiguous labels. Years ago, I remember running chromatography for hours because a single batch came in slightly off-spec, wasting time and reagents. Labs working with 3-Bromo-1,8-Naphthalene Anhydride tend to report fewer such setbacks, which boosts productivity across all scales.

    Analytical traceability strengthens reproducibility, a tenet both commercial and academic chemistry circles take seriously. Batch-to-batch transparency helps students and career scientists alike reproduce experiments, a persistent challenge in the chemical sciences. Intermediates that show batch variability leave a real mark on project timelines and data integrity. Trust in the supply chain relieves some stress from researchers, letting them focus on hypothesis testing and creative synthesis.

    Real Impact: Time, Resources, and Discovery

    At the core of modern research sits the need for impactful, modular synthesis with minimal waste. This anhydride supports streamlined workflow, whether it’s in small-scale explorations or larger, pilot-scale trials. Access to quality intermediates cuts total synthesis time, draws fewer resources from the reagent stockroom, and speeds up reporting to collaborators. More than one project I’ve been involved in turned from months to weeks after a switch to a better-designed starting material like this one.

    Research stories from across the globe mirror this. A team developing organic solar cells leverages naphthalene diimide frameworks built from such anhydrides, thanks to the bromine handle enabling late-stage diversification. In color chemistry, designers of industrial dyes appreciate the one-step access to chromophores otherwise requiring tricky halogenation post-cyclization. The versatility of this intermediate shortens routes and reduces the number of purification cycles—never a trivial win given the cost of time and solvents.

    Addressing Environmental Concerns

    Chemists today work against a backdrop of increasing environmental concern. Halogenated reagents sometimes draw skepticism for their ecological profiles. Many in the community now focus on greener protocols, using less solvent or investing in better waste management. Here, the predictability and selectivity of 3-Bromo-1,8-Naphthalene Anhydride allow more controlled transformations, which in turn means fewer byproducts and safer procedures. Literature over the last decade shows a steady uptick in catalysis strategies that reduce the environmental burden from halogenated aromatics, often using reagents like this in milder, more selective reactions.

    Waste reduction comes from fewer purification cycles and less solvent, aligning budget with environmental stewardship. While no lab finds perfection in waste management, using reliable, well-characterized intermediates sets the tone for more responsible practice.

    Opportunities for Improvement in Availability and Support

    Supply and support play big roles in usability beyond pure chemical identity. Sometimes, a top-performing reagent stalls projects if it lands with long lead times or sporadic stockouts. Effective partnerships with suppliers—clear batch data, responsive technical support, realistic availability forecasts—help labs plan timelines and reduce stress. In my own work, product delays often meant lost momentum, missed conference deadlines, and pulled funding. Consistent provision of 3-Bromo-1,8-Naphthalene Anhydride, along with technical guidance for less-experienced groups, keeps the wheels turning in innovation-heavy sectors.

    Educational outreach can go further. Workshops, webinars, and online case studies on getting the best from this anhydride will raise collective understanding. Range-of-use publications help new entrants see its potential in custom ligands, photoresponsive molecules, or supramolecular assembly. I have seen firsthand how better training on reagent choice leads to a drop in failed experiments and greater experimental confidence for junior scientists.

    Examples from Research and Industry

    Reports show that work with 3-Bromo-1,8-Naphthalene Anhydride spans projects from academic synthesis of new materials to industrial R&D labs focused on scalable routes. For example, published research on organic field-effect transistors often cites this anhydride as a key step toward naphthalene diimide-based semiconductors. Industrial dye manufacturers prioritize intermediates that can provide consistent product as formulations shift to meet new application needs.

    Open communication of successes (and the bumps along the way) backs up trust in the community. Experienced synthetic chemists can walk newcomers through real-world tricks for handling, avoiding moisture, scaling up reactions, or solving solubility issues, all based on years of direct lab time. Mentoring new laboratory staff on the use of this intermediate saves avoidable losses and strengthens the next generation of researchers.

    Tackling Unmet Needs

    Even with its performance, 3-Bromo-1,8-Naphthalene Anhydride leaves growth points for the future. Broader access (including smaller, starter-sized packs for coursework or early-phase studies) and more open sharing of application data will encourage even wider impact. Collaboration between academic, industrial, and government labs could spur novel uses, especially as fields like organic photonics or new-generation sensors keep shifting their material requirements.

    Public-facing repositories, sharing successful reaction conditions or synthetic tips, allow working researchers to build on each other’s progress. Such openness creates momentum and collective growth—a cornerstone for the kind of innovation that keeps chemistry vibrant.

    Trust, Verification, and Future-Ready Chemistry

    Chemistry often rewards those who take small, calculated risks with high-confidence reagents. This anhydride sits higher on the list for many due to its steady supply, predictable profile, and actionable safety data. The global push for reproducibility makes the reliability of core intermediates more visible, and solutions start from the bottom up—clear batch histories, supporting analysis, detailed application notes.

    With the rise of multidisciplinary work, from advanced electronics through bioactive frameworks, the ability of a reagent to bridge fields becomes vital. Several recent collaborations I’ve seen started with chemical questions but branched into device assembly, environmental monitoring, or analytical method development. Here, 3-Bromo-1,8-Naphthalene Anhydride emerges not just as a specialized building block, but as an engine for new ideas.

    Setting a Benchmark for Tomorrow

    Stepping back, the value of 3-Bromo-1,8-Naphthalene Anhydride doesn’t rest in abstract performance claims or marketing. Its real power lies in supporting everyday research as much as frontier discovery. It stands out as a resource that grows in value the more it’s understood—through hands-on experimentation, open data, and peer-to-peer exchange. The stories behind the science carry as much importance as the data itself, and as this compound finds its way into more projects, it brings with it new chances for better, faster, and safer synthesis.

    Synthetic chemistry, at its best, is a community effort. The rise of intermediates like 3-Bromo-1,8-Naphthalene Anhydride, built on direct experience and transparent support, signals a future where the pace of discovery matches the evolving needs of both research and application—without forgetting the fundamental value of trust and shared expertise along the way.