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3,4'-Dimethoxy-3',5,7-Trihydroxyflavone

    • Product Name 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone
    • Alias 3,4'-Dimethoxyquercetin
    • Einecs 216-245-6
    • 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

    901917

    Iupac Name 3,4'-Dimethoxy-3',5,7-trihydroxyflavone
    Molecular Formula C17H14O7
    Molecular Weight 330.29 g/mol
    Cas Number 57396-79-7
    Appearance Yellow crystalline powder
    Melting Point 282-284 °C
    Solubility Soluble in DMSO and methanol
    Pubchem Cid 5319332
    Structure Type Flavone derivative
    Boiling Point Decomposes before boiling
    Smiles COC1=CC(=C(C=C1)O)C2=COC3=CC(=CC(=C3C2=O)O)OC
    Synonyms Isorhamnetin 3,4'-dimethyl ether
    Logp 2.32
    Storage Temperature 2-8 °C

    As an accredited 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 5 grams; sealed with screw cap, labeled with chemical name, purity, CAS number, and hazard information.
    Shipping **Shipping Description:** 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone is shipped in secure, airtight containers to prevent contamination and degradation. The chemical is typically protected from light and moisture, and shipped at ambient temperature unless otherwise specified. All packaging complies with relevant safety and regulatory guidelines for laboratory chemicals. Safety data sheets are provided upon request.
    Storage 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone should be stored in a tightly sealed container, protected from light, heat, and moisture. Keep the chemical in a cool, dry, well-ventilated area, ideally at 2–8 °C (refrigerator). Avoid sources of ignition and incompatible substances. Proper labeling and secure storage away from oxidizers or acids are recommended to maintain stability and ensure laboratory safety.
    Application of 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone

    Applications of 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone in Industrial Manufacturing

    3,4'-Dimethoxy-3',5,7-Trihydroxyflavone serves as a specialized raw material with niche relevance across several downstream advanced manufacturing sectors. As the direct producer, we tailor both purity grade and delivery form based on integrated customer production lines. Below are major industrial application tracks in which this compound plays a functional and regulatory-compliant role, with each scenario detailing accepted compliance practices, recommended process concentrations, workflow stage, and the typical end products realized by our partners.

    1. Pharmaceutical API Synthesis for Flavonoid-based Therapeutics

    In active pharmaceutical ingredient (API) production, this compound functions as a critical intermediate in synthesis pipelines for creating selective flavonoid complexes. Production adheres to validated GMP workflows, emphasizing low-level impurity profiles and traceability from batch certification through to finished API. Downstream customers generally develop oral or injectable preparations targeting oxidative stress modulation or specific enzyme inhibition pathways, depending on the flavone scaffold derivatization. QC involves advanced HPLC analytics and residual solvent testing after each lot integration.

    Industry compliance standards

    • ICH Q7 for GMP Active Pharmaceutical Ingredients
    • USP <232> Elemental Impurities Protocol
    • European Pharmacopoeia monograph 01/2022:0000 for synthetic intermediates
    • FDA 21 CFR Part 211 (Finished Pharmaceuticals)

    Typical usage ratio

    • Applied in the 0.5%–3.0% range by weight in step-wise flavone condensation or protection/deprotection cycles. Final input adjusted per downstream precursor loading and stoichiometry of the active compound.

    Downstream process integration

    • Enters as a staged reagent during multi-step API synthesis, commonly at the aromatic substitution or methylation step, followed by water or organic phase extraction and controlled crystallization.

    Final product types

    • Pharmaceutical active pharmaceutical ingredients (APIs) for solid, oral, and parenteral drugs
    • Intermediate compounds for flavonoid analog medicines

    2. Natural Cosmetics and Personal Care Formulation

    Leading cosmetic manufacturers incorporate this flavone derivative as a functional additive in anti-aging, skin brightening, and antioxidant topical formulas. Regulatory focus centers on compliance with REACH and specific ingredient lists such as EU 1223/2009. Labs apply high-purity grades to ensure the absence of prohibited contaminants for leave-on skincare. Formulators blend this raw material at controlled micro-concentration ranges to achieve targeted light stability and performance in creams, serums, and emulsions intended for dermal application. In-process QC verifies absence of photoinstability and off-odors in bulk blending.

    Industry compliance standards

    • EU Regulation (EC) No 1223/2009 for Cosmetic Products
    • Cosmetic Ingredient Review (CIR) Guidelines
    • ISO 22716: Cosmetics GMP
    • REACH Registration, Evaluation, Authorization, and Restriction of Chemicals (EC 1907/2006)

    Typical usage ratio

    • Used at 0.01%–0.2% by weight, dependent on the cosmetic type, stability requirements, and compatibility with other antioxidants or UV-absorbers in the matrix.

    Downstream process integration

    • Introduced into the secondary actives phase during semi-batch or continuous blending, just prior to homogenization or emulsification, to maximize preservation of its bioactive structure.

    Final product types

    • Face serums and night creams (premium skin care)
    • Sun-care emulsions with antioxidant claims
    • High-end natural ingredient facial masks

    3. Food and Beverage Functional Ingredient Manufacturing

    Food additive specialists use this compound as a reference flavonoid for functional ingredient formulations in nutraceutical drinks, dietary supplements, and plant-derived food colorants. Production must observe strict food safety, allergen management, and trace residue standards under both local and international food codes. Ingredient grades undergo food hygiene certification, and suppliers provide analytical data supporting residual solvent and heavy metal compliance prior to incorporation in controlled blending rooms. The molecule is favored in antioxidant-rich blends, where it supplements polyphenol content in high-value beverage powders or tablets.

    Industry compliance standards

    • Codex Alimentarius General Standard for Food Additives (CODEX STAN 192-1995)
    • FDA GRAS (Generally Recognized as Safe) ingredient review
    • China GB 2760-2024 Food Additive Use Standard
    • FSSC 22000 Food Safety Management System

    Typical usage ratio

    • 0.005%–0.05% w/w in dry mix powders, or as guided by validated sensory and stability data per beverage or supplement batch; lower concentrations applied for colorant purposes versus antioxidant capacity boosting.

    Downstream process integration

    • Added to bulk powder blending tanks shortly prior to granulation or aqueous/ethanolic solution dosing; dosing monitored by in-line spectrophotometric control to confirm uniformity in blended foods or supplement matrices.

    Final product types

    • Instant beverage premixes for direct consumer use
    • Chewable dietary supplement tablets and capsules
    • Plant pigment-enriched food color additive blends

    4. Analytical Reference and Quality Control in Research Laboratories

    Certified laboratories and reagent kit assemblers incorporate high-purity standards of this molecule as an HPLC reference, quantitation check, or calibration agent for flavonoid quantification. End-users include pharmaceutical QC facilities, academic chemistry labs, and clinical trial material characterization sites. Compliance strongly references ISO and GLP, with careful traceability of lot certificates, stability test record-keeping, and documentation of material origin. Reference-grade batches are subjected to exhaustive spectral and chromatographic fingerprint recording to verify analytical suitability.

    Industry compliance standards

    • ISO 17025: Testing and Calibration Laboratories
    • OECD Guidelines for Good Laboratory Practice (GLP)
    • USP Reference Standards Program requirements
    • Internal SOPs for analytical standard traceability

    Typical usage ratio

    • Diluted to sub-parts-per-million solutions for external calibration, typically 0.5–50 µg/mL in HPLC mobile phase, with precise adjustment based on instrument sensitivity and required accuracy of method validation.

    Downstream process integration

    • Weighing and dissolution performed under controlled environmental conditions before passage through membrane filtration and injection to HPLC or LC-MS for calibration and reference curve establishment.

    Final product types

    • Certified analytical reference kits
    • Standardized quality control blends for method validation
    • Calibrator solutions for laboratory analytical system providers
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    Certification & Compliance
    More Introduction

    Introducing 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone: A Chemical Manufacturer's Perspective

    Our Experience with 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone

    Working through years of research and hands-on manufacturing, our team has become intimately familiar with the nuances of flavonoids. Among these, 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone (also recognized as a mono-methylated flavonol) stands out in our plant not only because of its scientific merit but because we see how small changes in its structure create real differences in application and production. Every batch that leaves our line reflects the experience hard won by countless pilot runs, quality controls, and coordination between R&D, production, and packaging. This molecule is more than a list of atoms to us—it represents a steady link between classic plant-derived chemistry and new applications.

    Chemical Profile and Why It Matters

    3,4'-Dimethoxy-3',5,7-Trihydroxyflavone, as its name suggests, belongs to the flavone family, which we regularly work with. These naturally-inspired structures bring reliability and predictability to our operations. The chemical structure is defined by its core flavone backbone, substituted at very specific locations by methoxy and hydroxy groups. In practice, di-methoxylated and tri-hydroxylated patterns distinguish it from other flavones, affecting properties such as solubility and stability. It’s not enough to know a molecule’s formula—our process checks for factors like consistency in melting point, color, and purity through every step.

    Specifications: Beyond Simple Purity

    Each time we undertake a new production run, real-world specification control starts in sourcing raw materials and auditing solvent residues downstream. Our 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone is delivered as a fine, lightly colored crystalline powder. HPLC and NMR analyses guide us in confirming that content regularly exceeds 98% purity, with related substance levels under control. Over the years, we’ve found this threshold brings the best performance balance in lab and industrial settings. Moisture and volatile content, usually the first to creep in and threaten stability, stay below 0.5%, thanks to specialized drying steps and batch aging protocols.

    Comparisons with Other Flavonoids

    In the flavonoid class, subtle differences shape how molecules behave. While quercetin, for example, has five free hydroxy groups and no methoxy substitutions, the di-methoxy pattern in 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone confers extra resistance to oxidative breakdown and alters lipophilicity. Researchers who rely on us to supply materials for pharmacology or biochemical testing regularly report that this gives improved shelf life and a distinct activity profile. Even compared to near relatives like 3,5,7-trihydroxyflavone (galangin), our experience suggests the dual methoxy groups lead to greater batch stability during extended storage and repeated handling. It's a distinction not always apparent from reference books, but one that becomes clear in the day-to-day work of chemical handling and repeatability studies.

    Applications: From Bench to Industry

    Our customers mostly target research and discovery, especially in the nutritional, pharmaceutical, and analytical chemistry fields. In these settings, attention to small structural variations can determine a project’s success. For example, methoxy substitutions typically increase membrane permeability, so researchers exploring absorption and bioavailability often favor this molecule. Bench research often centers on antioxidant tests, enzyme inhibition assays, and synthetic derivatization. The consistent feedback we receive is that our production methods support reliable repeat experiments. In pilot-scale pharmaceutical studies, precise control over polymorphic form and particle size, both shaped during crystallization and milling, can affect formulation and downstream processing.

    We have also seen 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone make its way into industrial screening for new adjuvants and botanical actives, especially where a modifiable backbone is sought. The methoxy groups are not just a static structural feature; they can act as synthetic handles for late-stage modifications. Synthetic chemists in major labs have told us the stable aromatic ring, paired with accessible hydroxy functions, make it suitable for conjugation work. These real-world uses only become possible because of the consistency and clarity we’ve built into our workflow.

    Manufacturing Challenges and Solutions

    Producing 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone at scale is no trivial task. Raw material quality can shift due to weather or supplier changes, affecting reaction profiles in the methylation and demethylation stages. We’ve found that monitoring reaction progress through onsite HPLC can catch deviations early, minimizing waste and avoiding hard-to-remove side-products. Our operators, many with decades of hands-on experience, have learned to judge the process by changes in reaction color or crystal habit—knowledge that gets passed down in our plant, not found in standard texts.

    Controlling crystallization has proven crucial. The presence of two methoxy groups changes the solvent preferences of this flavone compared to simpler types. We use solvent systems and temperature controls tuned specifically to prevent the formation of solvates, which would affect downstream use. Filtration and drying protocols adjusted for this compound keep trace solvent residues below detection by standard GC. Final product lots undergo multi-stage packaging under inert atmosphere, which has proven to extend shelf life far beyond simple bagging by protecting against moisture ingress and subsequent hydroxy group reactions.

    Quality Assurance Built on Real Experience

    Quality here is not an empty claim, but a daily practice. Each batch undergoes scrutiny—not only for purity, but for the subtle markers of stability and performance in user environments. We work regularly with outside contract labs to double-check our results against independently calibrated instruments. Our documentation, refined over feedback cycles with end-users, aims to bridge the gap between lab reports and real-world usability. Clients report back with application data, letting us trace back any performance issues to our own records and, if needed, refine our processes in the next run.

    Safe Handling and Communication

    Decades in this industry have taught us that true reliability includes a frank approach to safety and regulatory adherence. While 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone is not classified as highly hazardous, its chemical nature demands scrupulous control in storage and transport. We ship using tightly sealed packaging, desiccant pouches, and tracking for temperature exposure. Training for staff and transporters remains a top priority; all handlers receive ongoing instruction on safe loading, unloading, and emergency procedures.

    Our dialogue with users keeps improving the process. For example, some pharmaceutical development teams have flagged risk points in large-scale blending, prompting us to add secondary containment steps. These improvements, driven by continual feedback, end up as standard practice for all customers, not just those who flagged them. This integration of customer feedback keeps our safety and compliance approach grounded in real field experience.

    Storage: Protecting Value Through Practical Control

    Every warehouse pulls in moisture, heat, and light. Our ongoing internal studies, spanning months and changing seasons, help us optimize storage facilities—racking systems, sealed bins, desiccant rotation schedules—down to the level of individual drum or vial. Site visits to customers have revealed that storage protocols matter just as much as initial production. Inconsistent storage degrades product as surely as a bad process. For this compound, we recommend a cool, dry, and light-protected environment, but we also share empirical advice: rotate stock, inspect packaging seals often, and document temperature logs. Feedback loops from in-the-field stability testing have let us refine our packaging to withstand even difficult transport routes, such as those with customs delays or high-humidity environments.

    Research and Collaboration: Extending the Boundaries

    Research programs often bring us into collaboration with universities and industrial R&D groups. A growing trend is comparative testing—side-by-side studies with related flavonoids under physiological conditions. Our technical support doesn’t stop at delivery. We engage in detailed application reviews, running parallel control batches for customers when new data emerges. This process lets both sides draw insights faster, and guides us in refining our own synthesis or purification steps. We frequently supply tailored documentation or even small-scale reformulations to adapt to new research projects, especially those with exacting purity or reactivity demands.

    Some of the most interesting findings highlight the difference between expectation and reality. For instance, customers working on cellular uptake often comment on the increased permeability attributed to the molecule’s methoxy groups. Others, focused on antioxidant properties, compare it against quercetin or kaempferol, noting unique radical scavenging effects. These observations, shared back with our production team, feed into better predictive monitoring during production and help us anticipate demand surges in trending research areas.

    Environmental Responsibility and Sustainability Practices

    Production of fine chemicals, especially flavonoids, pushes us constantly to balance efficiency and sustainability. Years ago, we noticed certain byproducts accumulating in our wastewater, which led us to reevaluate solvent recovery and recycling steps. Now, reclaimed solvents supply over half our methylation cycle needs, both reducing environmental load and trimming long-term costs. We partner with local treatment facilities to ensure all aqueous residues reach safe, documented disposal. Regular environmental audits keep attention on these touchpoints.

    Raw material sourcing also matters. We build relations with reliable plant extract suppliers who use sustainable practices, and we audit incoming materials for trace pesticides and heavy metals. These steps help ensure the starting feedstock reflects the best environmental standards, reducing downstream risks. Our customers in the pharmaceutical and food industries demand nothing less, and we have found that a transparent approach to sustainability reassures regulatory agencies and supports long-term business.

    Continuous Improvement and Technical Support

    Through both structured projects and informal troubleshooting, our technical support staff maintains a continuous presence for clients. Each time feedback arrives about a novel use or an encountered obstacle, we log and share this knowledge internally. Sometimes it’s a matter of refining an isolation step; other times, process chemists propose a different drying schedule to boost powder flow or reduce static. Our operators implement pilot runs on proposed improvements before formalizing changes to the core production line. Over time, this method of incremental problem-solving results in a more robust protocol and more consistent lots.

    Technical assistance extends to supporting analytical teams as well. Questions often arise regarding method setup, especially where small variations in sample solubility or matrix effects can skew results. Our staff provide direct guidance, including sharing protocols observed to work best and offering reference standards from the same batch as the supplied product. This detail ensures laboratory data can be compared and verified with confidence, helping customers meet regulatory or publication standards.

    Building Value through Transparency and Trust

    By prioritizing clear, honest communication and sticking to evidence-based process decisions, we have built a foundation of trust with our customers and partners. We openly share technical findings—for example, noting that lots exposed to light during packaging tend to yellow over time, so we pack only at night and under filtered conditions. Updates go out regarding anticipated supply chain disruptions, projected lead times, or findings from fresh stability testing. Our goal matches that of our customers: to get reliable, predictable performance from each batch in every setting, from bench research to scale-up and application.

    Looking Forward: Supporting Growth in Research and Development

    Interest in flavonoid derivatives like 3,4'-Dimethoxy-3',5,7-Trihydroxyflavone keeps rising, driven by progress in both biomedical and material sciences. We track published research closely and communicate with academic groups, responding to changing application focuses and shifting purity or form factor requirements. Our continuing investment in analytical capacity and reaction control lets us expand not just volume but also the range of products we offer, including custom derivatives or tailored polymorph control for users with unique processing needs.

    The long view is important. Our approach stays rooted in daily practice and ongoing feedback, not just abstract claims. By aligning our quality and service with the real needs of the lab and production floor, we aim to support not just today’s projects, but also the next generation of scientific and industrial advances anchored by this distinctive flavonoid.