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9-Anthraldehyde

    • Product Name 9-Anthraldehyde
    • Alias 9-Formylanthracene
    • Einecs 208-345-3
    • 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
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    850811

    Cas Number 672-31-7
    Chemical Formula C15H10O
    Molecular Weight 206.24 g/mol
    Iupac Name Anthracene-9-carbaldehyde
    Appearance Yellow crystalline powder
    Melting Point 72-76°C
    Boiling Point 385°C
    Solubility In Water Insoluble
    Density 1.22 g/cm³
    Purity Typically ≥98%
    Flash Point 191°C
    Storage Conditions Store at room temperature, away from light
    Refractive Index 1.663
    Synonyms 9-Anthracenecarboxaldehyde
    Smiles C1=CC=C2C(=C1)C=CC3=CC=CC=C3C2=O

    As an accredited 9-Anthraldehyde factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 9-Anthraldehyde is supplied in a 25g amber glass bottle with a secure screw cap, labeled with chemical details and hazard warnings.
    Shipping 9-Anthraldehyde is typically shipped in tightly sealed, chemical-resistant containers to prevent leaks or contamination. It should be transported in compliance with local and international regulations for hazardous chemicals, ensuring it is protected from moisture, heat, and direct sunlight. Proper labeling and documentation are required for safe handling during transit.
    Storage 9-Anthraldehyde should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep the container tightly closed and protected from moisture. Store separately from oxidizing agents and acids. Use only in chemical fume hoods or well-ventilated rooms and ensure that appropriate chemical safety containers and secondary containment are utilized to prevent leaks or spills.
    Application of 9-Anthraldehyde

    Applications of 9-Anthraldehyde in Industrial Manufacturing

    9-Anthraldehyde supports several specialty chemical industries through its aldehyde functional group, aromatic core, and straightforward integration into multi-step syntheses. We supply this raw material to advanced formulators and processors who require controlled purity and traceable manufacturing for regulated downstream sectors. Below are real-world industrial applications in which this intermediate plays a key conversion or additive role.

    1. Synthesis of Anthraquinone Dyes

    Many dye and pigment manufacturers use 9-Anthraldehyde as a key building block in the stepwise construction of anthraquinone chromophores. The formyl group enables precise Friedel-Crafts and condensation reactions, directly impacting the purity and color strength of the final dye. Our manufacturing controls tight batch traceability, confirming absence of condensation by-products prior to downstream synthesis. Dye plant chemists adjust reaction conditions based on the aldehyde content and moisture level, ensuring reproducible integration in large-scale dye production lines.

    Industry compliance standards

    • REACH Annex XVII for ingredient and impurity limits in dye chemical manufacturing (EU)
    • ISO 9001:2015 Quality Management System for traceable batch production
    • ZDHC MRSL Level 3 chemical input verification for textile auxiliaries
    • US EPA TSCA regulations for toxicological profile reporting

    Typical usage ratio

    • 8–20% by weight in the anthraquinone dye intermediate synthesis reaction, adjusted per desired chromophore substitution pattern and reaction yield targets

    Downstream process integration

    • Added at the early stage of the condensation or cyclization step with appropriate Lewis acid catalysts; must be dried to <0.5% water content to avoid premature side reactions

    Final product types

    • Reactive and disperse anthraquinone textile dyes
    • Polyester and acetate colorants
    • Specialty printing ink color bases
    • Technical markers and plastics pigments

    2. Pharmaceutical Intermediate for Anthracene-Based APIs

    API manufacturers utilize 9-Anthraldehyde as a controlled intermediate in multi-step syntheses of anthracene-related pharmaceutical actives and excipients. The aldehyde group allows for regioselective coupling and derivatization, essential for target molecule specificity and regulatory consistency. Close GC and NMR analysis control residual solvents and impurities at the raw materials stage, which is a critical compliance matter for human or veterinary pharma applications. Our production certificates for pharma-grade supply include full batch analytics and contaminant traceability.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF and Ph. Eur. guidelines for starting material documentation
    • 21 CFR Parts 210/211 Current Good Manufacturing Practices (US FDA)
    • EU EudraLex, Volume 4 standards for raw material traceability

    Typical usage ratio

    • 5–18 mol% in key coupling or cyclization stage, with exact level based on stepwise conversion requirements and target yield

    Downstream process integration

    • Run as the second or third intermediate; must meet API impurity profile and elemental impurity requirements before chiral separation or advanced purification

    Final product types

    • Anthracene-based anti-cancer APIs
    • Specialty excipients for slow-release drug formulations
    • Certain antibacterial or antiviral agents (as permitted by regulatory filings)
    • Contrast agents for diagnostic imaging

    3. Photoinitiator Raw Material for Polymerization Initiators

    Chemical formulators require pure 9-Anthraldehyde for synthesis of advanced photoinitiators, particularly those designed for free-radical initiation within UV-curing resins and coatings. The aromatic aldehyde structure delivers precise reactivity for forming diaryl and arylalkyl photoinitiator molecules. Supplier documentation and compliance with impurity thresholds are critical for downstream effectiveness and regulatory acceptance in clear coat, electronics encapsulation, or 3D printing resin applications. Our quality assurance includes shipment of materials in moisture-free, light-protected containers.

    Industry compliance standards

    • ISO 14001:2015 Environmental Management System for polymer additive chemicals
    • RoHS Directive for electronics- and optical-grade photoinitiators
    • ASTM D4287/ISO 10601 for raw material input specification in photoinitiator synthesis
    • Japanese JIS K 5852 for synthetic resin additives

    Typical usage ratio

    • 4–12% by weight in the photoinitiator precursor solution; proportion depends on target reactivity and light absorption properties in downstream resin systems

    Downstream process integration

    • Charged in the initial condensation or alkylation reaction for photoinitiator synthesis with aryl halides or ketones; must be handled under nitrogen and in absence of UV light to avoid premature degradation

    Final product types

    • UV-curing photoinitiators for acrylate and epoxy resins
    • Free-radical initiators for 3D printing inks
    • Clear protective coatings for electronics and optics
    • Photoresist compounds for semiconductor fabrication

    4. Synthesis of Specialty Fragrance Ingredients

    Aromatic chemical manufacturers convert 9-Anthraldehyde to high-value fragrance aldehydes and musk intermediates, where process control over side-product content is essential for downstream olfactory profile and IFRA compliance. The formyl group’s selectivity supports condensation and etherification routes, enabling production of compounds with persistent fixative qualities. Our technical supply provides low-residual solvent, high-purity grades, accompanied by analytical COAs supporting perfumery ingredient manufacturing audits.

    Industry compliance standards

    • IFRA (International Fragrance Association) standards for ingredient residuals
    • REACH Substances of Very High Concern (SVHC) listing avoidance
    • ISO 9235:2013 for definition of synthetic fragrance chemicals
    • GMP for Cosmetic Ingredients (ISO 22716:2007)

    Typical usage ratio

    • 6–16% by weight in fragrance intermediate synthesis; modifiable based on yield, target fragrance power, and downstream purification efficiency

    Downstream process integration

    • Introduced during early-stage condensation or etherification with alcohols; requires vacuum drying of raw material before process entry to avoid odor quality fluctuations in finished fragrance bases

    Final product types

    • Musky aldehyde fixatives
    • Specialty fragrance bases for fine perfume
    • Technical perfume blends for home care and detergent use
    • Complex flavor and aroma compounds (where non-food contact regulations permit)
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    Certification & Compliance
    More Introduction

    9-Anthraldehyde: Insights from the Manufacturer’s Bench

    Understanding the Product’s Backbone

    Over the years in the lab and in production, our approach to chemicals like 9-Anthraldehyde has always focused on clarity and reliability. Every batch starts with high-purity anthracene, moving toward a pale-yellow crystalline powder that sits neatly on the workbench. Here, it’s all about precision—seeing the molecular formula C15H10O as more than a string of letters and numbers. In practice, this is a solid we know will yield consistent melting points and low residual moisture, two things that show up clearly on a quality analyst’s report. Impurities that creep above acceptable thresholds don’t just mean a lower-grade chemical; they translate to real-world headaches in downstream synthesis.

    Manufacturing 9-Anthraldehyde involves a multistep process, mainly by oxidation of anthracene at the 9-position, which delivers not only yields but purity levels we monitor with batch-to-batch comparisons. Each improvement in the reaction—choice of oxidant, control of temperature, precision in solvent recovery—echoes downstream. Our experience with these tweaks guides how the aldehyde takes shape as tangible, workable material instead of a generic entry in a catalog.

    What Sets Our 9-Anthraldehyde Apart

    For anyone searching for aromatic aldehydes, the question is always, “What does this version offer that the next supplier’s doesn’t?” I’ve spent years in the industry, and such questions repeat every time new buyers visit our plant. The most obvious distinguishing trait of 9-Anthraldehyde rests in its unique aromatic core. Unlike simple benzaldehyde derivatives, 9-Anthraldehyde brings the rigidity and extended conjugation typical to the anthracene backbone. This feature matters. In light-sensitive applications or in photochemical studies, its three-ring system brings robust stability and fluorescence traits that benzaldehyde simply doesn’t match.

    Some laboratories stick to benzaldehyde or tolualdehyde when working on aldehyde chemistry. I see their reasoning: these chemicals cost less and are abundant. Yet in photonics, advanced material synthesis, and pharmaceutical intermediate research, those products plateau quickly. Our 9-Anthraldehyde keeps its carbonyl group sterically shielded at the center of the anthracene, which delivers reaction sites that respond differently and sometimes more predictably. Analytical chemists report sharper melting ranges, and organic synthesis teams tell us they manage fewer byproducts, which means less time on purification.

    From Bench to Batch: Usability in the Real World

    Down on the plant floor, we don’t lose sight of small differences in texture and flow. Chemists notice when a solid packs too tightly, turns gummy during storage, or clumps after exposure to air during transfer. A high-purity batch of 9-Anthraldehyde forms free-flowing crystals. The color, nearly lemon yellow, stays true across months in a desiccator, and customers report the same shade in their delivered drums. Each lot’s spectral fingerprint—especially the sharp aldehyde proton signal in NMR—shows the consistency our prep team chases.

    In practice, synthetic chemists lean on 9-Anthraldehyde for its predictable reactivity. The aldehyde group isn’t shielded by electron-donating substituents, so condensations, Pfitzinger, and Wittig reactions run cleaner. Teams developing organic semiconductors or light-emitting materials rely on the extended conjugation of anthracene for charge transfer and fluorescence properties. These can only be harnessed if the starting aldehyde comes clean and on spec.

    A recurring theme we see is the need for customizable purity. Academic research groups often find trace-level impurities acceptable, but high-tech electronics and pharmaceutical development demand nearly invisible contamination. High-pressure liquid chromatography (HPLC) scans on our material reach over 99% area purity, making the product suitable for these advanced systems. Still, each customer asks for certificates of analysis with their order, and we include them transparently, including moisture, ash, and trace metal content.

    How Usage Feeds Product Evolution

    Usage patterns influence our production choices every year. For example, photoinitiator manufacturers often require kilo-scale quantities, and demand no odd particulate or discoloration, because any stray contaminant could slow down photopolymerization. More traditional users, such as agrochemical synthesis labs, want aldehyde function without residual solvents that could interfere in subsequent hydrogenation steps.

    Over the years, we’ve seen a shift from small-batch academic research to larger scale pilot projects in electronics. Organic light-emitting diodes (OLEDs) and solar cell developers keep pushing boundaries, asking for stricter control on metal traces, ultra-low moisture, and tighter particle size distribution. Our plant responded by integrating in-line drying ovens and temperature-controlled storage that minimize the risk of any water uptake during packing.

    This perspective comes from fielding calls and lab visits for decades. Requests for bespoke sizing, packaging in nitrogen atmosphere, and ultra-high-purity grades are now routine. The feedback doesn’t just sit in a notebook; it transforms the setup at every step—up from the raw material ovens through the final packing line.

    Comparing 9-Anthraldehyde with Other Anthracene Derivatives

    Within the anthracene family, the differences between 9-Anthraldehyde and its cousins are clear in practical terms. 9-Anthracene carboxylic acid, for instance, carries a carboxyl group instead of an aldehyde; it responds differently in Suzuki couplings or amidation chemistry. 9-Anthronal shares the same anthracene backbone with a ketone function, lending itself to reductions that operate under a different set of conditions. While these compounds overlap in starting material pipelines, downstream applications rarely blur the distinctions.

    Talking with technical directors at other chemical plants, I see consistent reports: 9-Anthraldehyde’s aldehyde group opens doors to condensation routes, fluorophore attachment, and selective oxidations. Its stability exceeds simpler monocyclic aldehydes, particularly in heated or light-exposed environments. Notably, trace levels of 9-Anthrone or anthracene can derail these sensitive processes, so rigorous purification stands as non-negotiable.

    Customer feedback often details head-to-head trials of our 9-Anthraldehyde against other sources. In pigment synthesis, our version resists yellowing from byproducts, likely because the process runs with fewer trace metals and cleaner crystallization sequences. Comparisons with commercial benzaldehyde, though technically a different class, often highlight anthracene’s benefits: longer conjugation and higher thermal stability.

    Practical Challenges and Their Solutions

    Every chemical manufacturer faces a similar set of headaches: keeping product stable through transit, minimizing exposure to light and oxygen, and holding off on degradation during long-term storage. 9-Anthraldehyde’s extended aromatic system gives it some natural stability, but long sunlight or high heat exposure can still start yellowing or promote oxidation. We guard against this by using opaque, airtight drums, nitrogen-purged for high-purity lots.

    Supply chain snags surface now and then: extended lead times for anthracene, spikes in solvent prices, or shipping delays. Flexibility also means storing years of accumulated knowledge—how to optimize each purification cycle, how to train new staff in the quirks of handling crystalline solids, and how to spot off-spec crystalline growth before it leaves the plant. We run regular root cause analyses after any off-quality report, feeding the fixes straight back into process improvements.

    Over the past decade, more clients have wanted assurance not just on performance but traceability. That push means logging raw material lots, batch numbers, in-process checks, and microanalytical results digitally. Transparency builds trust, especially since many end-users need documentation to qualify for industry certifications in electronics or advanced materials.

    Why Purity and Testing Details Matter in the Lab

    Back in our analytical labs, spectroscopists check every lot with UV-Vis and fluorescence spectroscopy, since tiny impurities can alter absorbance or emission—and downstream, that means failed OLED batches or inconsistent sensor data. Even for relatively simple quality checks like TLC or melting point, consistency wins. Clients regularly comment that their reactions move forward smoothly, often needing less time on chromatography because our product contains fewer side products.

    Particle size rarely shows up on paper certificates, yet it shapes lab experience for users every week. Fine powder clumps; large crystals might dissolve slowly. Our process yields a size most users find manageable with standard lab tools—a detail that cuts down time on grinding or extra drying steps.

    Moisture content also deserves attention. Organic reactions with sensitive reagents can crash in the presence of water. We take this seriously—each drum is doubly sealed post-packing under dry air or nitrogen, and testing for Karl Fischer moisture content forms part of the release spec. Customers see the benefit when yields track closer to theoretical predictions and side-product formation drops.

    How Customer Use Guides Our Manufacturing

    Many of our improvements trace back to what end users share after handling the product. Pharmaceutical partners flag sensitivity to certain trace metals, leading us to install higher-grade filters and switch out specific stainless-steel reactor components that might leach iron or chromium. For researchers in advanced solar materials, we run extra purity checks and offer technical support to fine-tune their protocols using our batch data.

    Occasionally, someone will try to use 9-Anthraldehyde in a reaction better suited for another derivative, only to hit a dead end. We provide guidance here, too, pointing toward alternative functionalization points or suggesting if a methyl group would speed up electrophilic substitution. This back-and-forth with users informs small process tweaks—like extending recrystallization or adding another pass through charcoal purification—to tackle new contaminants or color bodies.

    Once in a while, academic researchers push the product in new directions—attaching the aldehyde to dyes for molecular sensors, linking it to polymers for electrical conductivity studies, or probing life span under new irradiation regimes. They come to us with technical questions and analytical requests, often leading us to publish joint results or case studies.

    Meeting Regulatory and Environmental Needs

    Chemical plants today carry an extra burden—demonstrating environmental responsibility and supply-chain transparency. The anthracene source must be documented as free of banned impurities. Waste streams from 9-Anthraldehyde prep receive thorough solvent recovery and treatment, tracked in compliance with local environmental protocols. These steps aren’t abstract—they form daily routines that keep processes sustainable and ensure downstream users avoid regulatory tangles.

    Auditors and third-party certifiers visit our facility, looking for traceability in both raw materials and finished goods. We welcome these reviews and use audit results to shape training for staff, invest in safer equipment, and implement new documentation steps for reporting. Our experience shows that transparency not only satisfies regulators but also builds customer loyalty, especially for those exporting goods based on our chemicals to highly-regulated markets.

    Safe product handling matters. 9-Anthraldehyde’s aldehyde group brings inherent hazards with skin and respiratory sensitization, and we don’t gloss over this in shipping. Each drum’s labeling, MSDS, and hazard training reflect a real understanding of the compound’s nature, not just compliance with rules. Regular hazard reviews and customer feedback also drive how we build new packing standards.

    Lessons from Long-Term Use and Scaling

    Scaling up 9-Anthraldehyde production from the kilo lab to industrial volumes called for adjustments. Reaction exotherms, heat removal, and solvent recycling all behave differently at large scale. We built redundancy for waste handling, double-checked condenser loads during aldehyde stripping, and created systems for closed transfer, reducing losses and emissions.

    Demand swings push us to maintain robust inventory and supplier networks. When anthracene runs short or regulatory changes make production more complex, those forward contracts and long-term relationships deliver continuity. There’s a temptation in this business to cut corners during lean periods, but our philosophy stands: batch integrity, analytical rigor, and customer communication anchor every shipment. Our oldest customers—some working with us for decades—know this story firsthand.

    Over time, requests for technical information go deeper than simple purity or moisture figures. Semiconductor and OLED manufacturers want a breakdown of isomeric impurities, photo-reactivity assessments, packaging designed for clean rooms, and custom pre-drying. These demands have led our team to work with specialty analytical labs, adding new capabilities like GC-MS impurity profiling and low-level oxygen monitoring. These aren’t academic exercises, but real-world needs from partners looking to drive technology forward.

    Looking to the Future of Chemical Manufacturing

    The future for 9-Anthraldehyde production isn’t just about bigger-scale syntheses or marginal cost reductions. Industry trends push for greener solvents, non-toxic reagents, and lower energy footprints. Our process engineers work with leading catalysis chemists to swap out legacy oxidants for safer, recovery-friendly alternatives. Each improvement stems from hard-earned experience, but also a willingness to listen—to lab partners, to environmental concerns, and to new industry standards.

    We track innovations in reaction monitoring, especially inline analytics, to catch deviations in real time. Upgrades in temperature, pressure, and airflow tracking ensure every batch matches not only certificate values but performance in practical hands. This feedback loop—between plant, analytics, and end user—drives us to continually refine both product and process.

    Every drum of 9-Anthraldehyde shipped out represents more than a line on a balance sheet. Behind it stands decades of combined experience, thousands of shared technical notes, and a steady drive toward better performance. For buyers who’ve handled multiple aldehydes and seen projects hinge on details, the difference becomes clear: rigorous sourcing, hands-on analytical support, and a true commitment to product evolution outlasts shortcuts every single time.

    Direct from the Source: Commitment to Consistency

    Speaking honestly as a manufacturer, each lot of 9-Anthraldehyde draws from the lessons learned across every batch before it—and the trust placed in us by users from undergraduate teaching labs to electronic materials development teams. Our manufacturing floor sees no magic—just a daily push for quality, transparency, and forward-looking improvements. The result is a compound that responds predictably and stands up to real-world screens.

    After years of conversations with technical staff, postdocs, factory managers, and regulatory inspectors, we recognize the two-way street driving chemical supply. Every adjustment, whether swapping a filter, challenging a purity test, or updating the solvent tanks, aims to keep the core promise: unwavering reliability and open dialogue.

    With this mindset, every crystal produced and shipped stands as testimony to manufacturing that values integrity above convenience. We continue refining the product, drawing from the challenges and successes shared by customers worldwide. This one-to-one connection forms the base that sustains both our manufacturing process and the broader scientific work using 9-Anthraldehyde.