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3,4-Dimethoxy-5-Hydroxybenzaldehyde

    • Product Name 3,4-Dimethoxy-5-Hydroxybenzaldehyde
    • Alias Isovanillin
    • Einecs 210-258-6
    • 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
    VTB
    Specifications

    HS Code

    398808

    Name 3,4-Dimethoxy-5-Hydroxybenzaldehyde
    Molecular Formula C9H10O4
    Molecular Weight 182.18 g/mol
    Cas Number 33198-26-6
    Appearance White to off-white crystalline powder
    Melting Point 153-156°C
    Boiling Point No data available
    Solubility Soluble in methanol, DMSO
    Density No data available
    Purity Typically ≥98%
    Smiles COc1cc(C=O)c(O)c(OC)c1
    Inchi InChI=1S/C9H10O4/c1-12-7-3-6(5-10)8(11)9(4-7)13-2/h3-5,11H,1-2H3
    Storage Conditions Store at 2-8°C, protected from light

    As an accredited 3,4-Dimethoxy-5-Hydroxybenzaldehyde factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 3,4-Dimethoxy-5-Hydroxybenzaldehyde; tightly sealed, labeled with hazard, purity, and batch information.
    Shipping 3,4-Dimethoxy-5-Hydroxybenzaldehyde is shipped in tightly sealed, chemically compatible containers to prevent moisture and air exposure. The packaging complies with regulations for safe transit of laboratory chemicals, ensuring it is protected from heat and direct sunlight. Accompanied by proper labeling and documentation, shipping follows both domestic and international chemical transport guidelines.
    Storage 3,4-Dimethoxy-5-Hydroxybenzaldehyde should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition and incompatible substances such as oxidizing agents. Protect the substance from light and moisture. For added safety, store at room temperature or lower, and label the container clearly. Handle under appropriate laboratory safety protocols.
    Application of 3,4-Dimethoxy-5-Hydroxybenzaldehyde

    Applications of 3,4-Dimethoxy-5-Hydroxybenzaldehyde in Industrial Manufacturing

    3,4-Dimethoxy-5-Hydroxybenzaldehyde plays a specialized role in several advanced chemical manufacturing sectors due to its reactivity and structural properties. Below we detail authentic downstream application scenarios, highlighting regulatory guidelines, application rates, processing integration points, and representative end-use products as practiced in the chemical industry.

    1. Pharmaceutical Intermediate for Tetrahydroisoquinoline APIs

    This aromatic aldehyde serves as an essential precursor for synthesizing Tetrahydroisoquinoline derivatives used in APIs for antihypertensive and neurological medications. Pharmaceutical synthesis relies on its precise substitution pattern during Mannich and Pictet–Spengler reactions, directly impacting product yield and impurity profiles.

    Industry compliance standards

    • Good Manufacturing Practice (GMP) (ICH Q7, EU GMP Part II)
    • Pharmacopoeias: United States Pharmacopeia (USP), European Pharmacopeia (Ph. Eur.), Japanese Pharmacopoeia (JP)
    • International Organization for Standardization: ISO 9001 for quality management
    • Registration requirements for drug intermediates (China FDA, EMA Substance Registration)

    Typical usage ratio

    • 5–15% of total intermediate stage reaction mass, depending on target derivative and batch reactor load
    • Adjustment based on stoichiometric calculation and desired yield, commonly verified via HPLC monitoring

    Downstream process integration

    • Introduced at the condensation/cyclization stage after initial amine formation
    • Integrated into semi-batch or continuous flow synthesis lines for API intermediate steps
    • Monitored during in-process controls for aldehyde conversion efficiency

    Final product types

    • Pharmaceutical intermediates for antihypertensive drugs (e.g., labetalol, trimetaphan)
    • Tetrahydroisoquinoline core APIs for central nervous system therapies

    2. Fine Chemical Synthesis: Flavors and Fragrance Aldehyde Derivatives

    This aromatic aldehyde is a key starting material for formulating complex aldehyde derivatives widely used in the flavor and fragrance sector. Its ortho-methoxy and hydroxy functionalities make it valuable for creating stable, high-purity aroma compounds and aldehydic notes challenging to obtain by other means.

    Industry compliance standards

    • IFRA Standards for fragrance ingredient safety
    • FAO/WHO Food Additive Specifications (When applied to food-related aromas)
    • REACH Registration (EU chemicals regulation EC 1907/2006)
    • ISO 9235:2013 for aromatic natural and synthetic substances in perfumes

    Typical usage ratio

    • 2–7% as an aldehydic feature ingredient in synthesis of key notes or fixatives, adjusted per formulation stability and regulatory limits
    • Higher concentrations for fragrance intermediates, lower for as-blended aroma compounds

    Downstream process integration

    • Added during Grignard or reductive amination stages to introduce customized functional groups
    • Employed in batch reactors for fragrance base compound synthesis, followed by purification via distillation/chromatography

    Final product types

    • Aroma aldehydes for fine fragrance manufacture
    • Flavoring agents used in processed food and beverage applications
    • Intermediates in the synthesis of musk and floral note compounds

    3. Dye and Pigment Precursor for Azo and Anthraquinone Systems

    Manufacturers employ this compound in the dye and pigment industry to achieve unique chromophore structures, particularly for high-performance azo and anthraquinone dyes. Its substituents enable the creation of colorants with enhanced solubility profiles and lightfastness characteristics.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for textile dye safety
    • EN 71-3 for colorant use in toys
    • REACH Annex XVII restrictions (aromatic amines in coloring applications)
    • ISO 105-B02 for color fastness to artificial light

    Typical usage ratio

    • 3–12% in coupling reactions, proportional to required chromophore density and shade intensity
    • Formulation adjusted depending on fiber or matrix compatibility requirements

    Downstream process integration

    • Participates as a diazonium salt coupling component or as a methoxy-activated aromatic nucleophile
    • Added before final dye precipitation and filtration stages
    • Quality controls include TLC, GC-MS for residuals and color profile tuning

    Final product types

    • Reactive and disperse dyes for polyester, nylon, and cellulosic fibers
    • High-durability pigments for plastics, printing inks, coatings

    4. Agrochemical Intermediate for Plant Growth Regulator Synthesis

    In the agrochemical industry, this material acts as a precursor in the creation of specialized phenolic plant growth regulators. Its dual methoxy and hydroxy substitution patterns are essential for fine-tuning biological activity and environmental degradation rates of downstream molecules.

    Industry compliance standards

    • FAO/WHO Guidelines for pesticide formulation and specification
    • EPA 40 CFR Part 158 for agrochemical manufacturing
    • ISO 9001 for documented quality management in chemical production
    • European Regulation (EC) No 1107/2009 for plant protection products

    Typical usage ratio

    • 2–8% by weight, depending on final regulator class and active ingredient requirement
    • Rate established through biological activity assays and environmental impact analysis

    Downstream process integration

    • Added to condensation stages for creating critical phenol-based cores
    • Employed before esterification or etherification for molecule customization
    • Monitored with HPLC or UV-Vis during laboratory and pilot plant scale-up

    Final product types

    • Plant growth stimulators for field crops
    • Herbicide safener intermediates
    • Auxin analogues for horticultural use
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    Certification & Compliance
    More Introduction

    Introducing 3,4-Dimethoxy-5-Hydroxybenzaldehyde: Practical Insights from Our Factory Floor

    What We’ve Learned by Making 3,4-Dimethoxy-5-Hydroxybenzaldehyde Ourselves

    Every batch of 3,4-Dimethoxy-5-Hydroxybenzaldehyde we produce at our facility brings its own challenges and a sense of accomplishment. With each order shipped, my respect for the intricacies of this aromatic aldehyde grows a little deeper. People recognize this compound as an essential intermediate in countless synthetic routes, especially for pharmaceuticals and specialty materials. We’ve built our process around reliability and reproducibility because inconsistent product quality is never acceptable—not for us, not for the customers relying on downstream synthesis.

    Technical Details That Matter in Real-World Production

    Chemical catalogs often list specifications that look impressive on paper, but I believe what truly matters is attention to every detail throughout the manufacturing process. In our shop, we control parameters closely, starting with high-purity starting materials. Here, 3,4-Dimethoxy-5-Hydroxybenzaldehyde leaves the line with purity instructed by HPLC to consistently run in the upper ninety percent range, minimizing contaminants that can otherwise trip up subsequent reactions. Our standard batch tests exhibit purity upwards of 98%. Melting point ranges and moisture content are monitored at every scale, from lab to tonnage.

    Experience teaches that customers value transparent, repeatable results. Each time we introduce an incremental improvement in washing, drying, or crystallization, we pursue it for a reason—ensuring fewer surprises at the user end. When orders specify client-required certifications like chemical traceability or extra analysis for trace metals, we’re ready to provide those.

    Looking Closer at Structure and Applications

    Getting to work with this molecule puts us at the center of numerous downstream innovations. 3,4-Dimethoxy-5-Hydroxybenzaldehyde features a benzaldehyde core with two methoxy groups at the third and fourth positions and a hydroxy group at the fifth. That combination may sound somewhat technical, but its impact in the lab is straightforward: the dual methoxy substitution shields and tunes the aromatic ring, while the hydroxy group offers a convenient handle for further modification.

    Most demand in our customer base centers around pharmaceutical intermediates. The compound joins coupling, reduction, or condensation steps in multi-stage syntheses. We've supplied it for projects in medicinal chemistry, including lead optimization for kinase inhibitors and research on new anti-inflammatory agents. Unlike the parent 3,4-dimethoxybenzaldehyde, adding a hydroxy group opens up reactivity options, such as forming ethers, esters, or protecting groups with less hassle. The positioning of the groups isn't an academic detail—it's what underwrites selective reactivity and streamlined synthesis.

    Research chemists tell us that the high purity and consistent physical form from our production line make a difference in their day-to-day work. They see fewer problems with tough dissolutions, and results remain predictable whether they're running pilot syntheses or large-scale batches. From my experience, these practical, hands-on wins outweigh any spec sheet figures.

    Differences from Similar Benzaldehyde Derivatives

    Comparing our product to closely related chemicals like 3,4-dimethoxybenzaldehyde or vanillin (which is 4-hydroxy-3-methoxybenzaldehyde) reveals subtle, but important, operational differences. While all these compounds share an aromatic frame and certain reactivity patterns under nucleophilic or electrophilic substitutions, the specific substitution pattern on 3,4-Dimethoxy-5-Hydroxybenzaldehyde fine-tunes its chemical behavior.

    The hydroxy group at the fifth position—rather than at positions ortho or para to the aldehyde—shifts both electronic effects and practical outcomes. When our chemists substituted these functional groups around, they observed changes in reaction rates, yields, and selectivity during downstream functionalization. Some clients start with a hydroxybenzaldehyde, thinking the difference won’t matter, but after struggling with low conversions in coupling reactions, they realize the placement and type of electron-donating groups define reactivity far more than many textbooks suggest.

    Our production line adapted long ago to the specific purification challenges raised by extra methoxy groups. Basic distillation does not suffice; significant attention must go into repeated recrystallization and chromatography. If we cut corners, even minor process changes ripple into product inconsistencies, manifesting as yellowing or increased side-product content. Our quality team checks each lot visually and instrumentally, flagging anything that doesn't meet established benchmarks.

    From Plant to Packaging: Managing the Production Environment

    Running a chemical line at commercial scale means dealing with everything from vendor reliability to seasonal fluctuations in ambient humidity. Methoxy group protection, moisture control, and safe handling of aldehyde intermediates turn up as constant, unglamorous themes during daily operations. There's a reason our equipment operators obsess over airtight seals and anti-contamination protocols. Any lapse in containment risks cross-contaminating sensitive, high-value batches.

    Consistency matters. We've seen times when minor temperature deviations during crystallization introduced more than 0.3% impurity spikes—small on paper, but enough to disrupt sensitive synthesis steps for downstream users. As a response, we introduced automated controls within the last two years, replacing manual oversight with tight digital monitoring in critical steps, primarily during solvent exchange and vacuum drying.

    Our process doesn't just revolve around final product testing. We work upstream, qualifying every solvent and reagent for trace impurity content. Experience reminds us that saving a few pennies by cutting corners in solvent procurement leads to costly headaches later. Customers tell us they’d rather pay for consistent quality than deal with lost batches.

    Operational Knowledge: Challenges and How We Respond

    Scaling from bench-scale runs to industrial production seldom unfolds without surprises. Our earliest challenge involved persistent color taints in the crystals—a consequence of trace iron introduced during filtration. Years back, we hardly imagined that investing in all-glass transfer lines would pay off, but the elimination of steel traces improved product color and long-term storage stability noticeably. Over time, we found that switching filter aids from celite to finer polymer-based materials cut particulate issues even further.

    Some users need a product with an especially low ash or water content. For them, we dial in extra drying cycles and apply extended vacuum holds that drop moisture well below 0.1%. The real cost in plant time is justified when we see end applications where even trace water content would result in unwanted side products. Our investment in Karl Fischer titration equipment wasn’t driven by regulatory boxes to tick—it arose from pragmatic production headaches.

    The Human Side of Quality Management

    Machines and automation help, but the real soul of reliable chemical manufacturing comes from the team. Several colleagues have been with us for decades, and their eyes for changes in crystal habit or smell often catch subtle process deviations before any instrument does. It saves us time and money to empower staff to halt a batch the instant something feels off. Training newer team members to trust these instincts has dramatically cut down on batch failures and rework rates.

    Factory-to-lab communication matters. We developed an internal reporting system where users of the material—both internally and at customer sites—send feedback on handling and performance. A few years ago, one regular partner flagged that our product's wetting properties had shifted, impacting their downstream dissolution rate. Thanks to that heads-up, our investigation revealed a slightly altered particle size distribution in just one batch, which we corrected by revising the milling setting. This sort of open dialogue keeps our product at the level that real-world chemists expect.

    Environmental and Regulatory Commitments in Practice

    Chemistry never unfolds in a vacuum. Local regulations on hazardous materials, plus broader environmental standards, shape our day-to-day routines. We’ve built closed-loop solvent recovery and vapor handling into the line—not because regulations demanded it, but because raw solvent costs have climbed and nobody wants chemical smells leaving the site. Spills and fugitive emissions become rare with enough attention to process engineering.

    Compliance extends to documentation, as anyone manufacturing pharmaceutical ingredients knows too well. Batch records detail every input, change of lot, inspection stage, and employee shift. Regulators or auditors can show up with zero notice. Years of keeping thorough records paid off during unannounced inspections, where process logs and safety protocols demonstrated a culture of real accountability.

    Waste disposal is another practical consideration. We treat solvent waste streams onsite by distillation and confirm the absence of persistent organic pollutants before sending residues to authorized handlers. Solid waste is segregated, monitored, and logged. The tedious parts of compliance usually relate less to high-visibility safety checks and more to keeping up with evolving documentation standards. We update protocols annually to integrate both regulatory changes and improvements suggested by our operations team.

    Cost Considerations and Balancing Efficiency

    Raw materials make up a significant fraction of total costs. Sourcing high-quality starting methoxybenzenes requires long-term supply chain planning and regular analytical spot-checks. Cheaper supplies sometimes carry more residual solvents or elevated trace metal content. In our experience, any savings at the input stage get quickly lost due to debugging and cleaning out a contaminated production line.

    We’ve leaned heavily into predictive maintenance and real-time monitoring. Every piece of major equipment now generates diagnostics, allowing us to schedule overhauls before breakdowns stop a run midway. Preventing unplanned downtime emerged as the most effective lever for controlling overall costs—waiting for machinery to spit out strange noises or unfamiliar vibrations just isn’t acceptable.

    Batch sizes can be flexed to meet specialized contracts or research needs. Maybe a kilo for an early-stage drug candidate; perhaps a full train run for established customers. Oversized lots, though, sometimes saddle us with inventory that needs to be managed for stability, so our preference is to agree on rolling delivery schedules and tight demand forecasting.

    How We Handle Client Requests and Customization

    Working directly as a manufacturer brings us into close contact with technical teams from pharmaceutical, agrochemical, and materials science sectors. End-users often need variations in particle size, specific packaging types, lower content of trace impurities, or material handled under inert gas. Meeting these needs means tweaking process parameters and working closely with QA to revalidate. Few things impress a customer more than adjusting a production schedule to deliver a one-off batch with nonstandard processing—and then getting repeat orders because it just works better in their hands.

    Some customers ask for extended shelf-life verification or help troubleshooting their own formulations. We welcome these kinds of interactions. Setting aside one-on-one communication time can transform a transactional sale into a collaboration.

    Anticipating Future Developments and New Uses

    Chemistry shifts quickly. As end-users discover new applications—whether that’s as a precursor for specialty dyes, more selective anti-microbial agents, or performance polymers—our plant evolves right along with those changes. Research partners sometimes surprise us with novel modifications to the molecule’s base structure, asking for samples in alternative purities, solvents, or fine-tuned specs.

    We keep a close eye on new publications and patent filings involving methoxybenzaldehydes. Our in-house R&D team explores small tweaks in oxidation, protection, and deprotection methods, reporting back when alternate routes give advantages in cost or environmental footprint. It often takes months to shift an established process but realizing savings in raw material consumption or finding greener routes to the same product is worth it.

    Trust Built on Reliability and Shared Knowledge

    Decades of operating as a manufacturer, as opposed to a distributor or middleman, have grounded us in practical realities. Product reputation is hard-won and easily lost. By listening to user feedback, making investments where they count, and developing the instincts that only come from working hands-on with chemicals, we’ve built a reliable supply of 3,4-Dimethoxy-5-Hydroxybenzaldehyde.

    Users can see the difference in streamlined syntheses and fewer troubleshooting calls. Our goal remains straightforward—to deliver a product that chemists reach for because it performs each time, without delay or surprise. No spec sheet can substitute for material you can count on, batch after batch. That’s the kind of confidence that flows best from those who manufacture rather than merely sell.