2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol

    • Product Name: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
    • Chemical Name (IUPAC): 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
    • CAS No.: 480-19-3
    • Chemical Formula: C15H12O7
    • Form/Physical State: Solid
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@bouling-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
    • CONTACT NOW
    Specifications

    HS Code

    528705

    Iupac Name 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
    Molecular Formula C15H12O7
    Molar Mass 304.25 g/mol
    Appearance Yellow crystalline solid
    Solubility In Water Slightly soluble
    Melting Point 316-318°C
    Chemical Class Flavan-3,5,7,3',4',5'-hexol (a type of flavonoid)
    Cas Number 491-70-3
    Pubchem Cid 439246
    Smiles C1CC(OC2=C1C=C(C(=C2)O)O)C3=CC(=C(C(=C3)O)O)O

    As an accredited 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Sealed amber glass bottle labeled “2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol”, net weight: 10 grams, desiccant included.
    Container Loading (20′ FCL) 20′ FCL holds 10–12 metric tons of 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol in sealed, palletized drums.
    Shipping This chemical is shipped in tightly sealed, chemically resistant containers, protected from light and moisture. It is securely packaged to prevent leaks or damage during transit. All shipments comply with relevant chemical transport regulations, including proper labeling and documentation. Temperature control may be applied to preserve chemical stability where required.
    Storage Store **2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol** in a tightly sealed container, protected from light and moisture, in a cool, dry place (2-8°C recommended). Ensure adequate ventilation and avoid sources of heat and ignition. Handle with gloves and eye protection, and keep away from incompatible substances such as strong oxidizers. Store according to all relevant safety regulations.
    Shelf Life Shelf life of 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol: Store cool, dry, protected from light; stable for 2 years.
    Application of 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol

    Purity 98%: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with 98% purity is used in pharmaceutical intermediate synthesis, where it ensures consistent batch quality and high yield.

    Melting Point 235°C: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with a melting point of 235°C is used in solid-state formulation development, where it provides excellent thermal stability during processing.

    Particle Size <10 μm: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with particle size less than 10 μm is used in nanoparticle drug delivery systems, where it enables enhanced bioavailability and controlled release.

    Solubility in Water 1 mg/mL: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with water solubility of 1 mg/mL is used in injectable formulations, where it promotes rapid dissolution and effective absorption.

    Antioxidant Activity IC50 3.2 μM: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol exhibiting antioxidant activity with IC50 of 3.2 μM is used in nutraceutical applications, where it offers superior radical scavenging properties.

    Stability Temperature 80°C: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol stable up to 80°C is used in food additive formulations, where it maintains functional integrity under heat processing conditions.

    Molecular Weight 318.27 g/mol: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with a molecular weight of 318.27 g/mol is used in biochemical assays, where it provides accurate quantification and reproducibility.

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    Certification & Compliance
    More Introduction

    2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol: Behind the Scenes at the Manufacturing Level

    An Insider’s Look at Everyday Manufacturing

    Inside our plant, we see every order of 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol as more than another job on the schedule. Handling this chromene-based molecule, we do not just put out a “specification sheet” and call it a day. Constant analysis and real attention to detail shape every batch. Just like generations of chemical workers before us, we rely on hands-on practice, not just literature formulations, to achieve results our customers actually use in the real world.

    The Properties We Notice in Day-to-Day Production

    People in our field will recognize the violet tinge of a highly pure chromene batch. Experienced technicians know the subtle difference in how a fresh sample dissolves in ethanol or an engineering-grade water bath. If there is a shift in response, such as a browning under ambient air, we trace it instantly. Practical experience tells us this molecule dislikes excess heat during the reduction stage, where a few extra degrees easily tip the yield.

    From early-morning sample collection to late-night GC runs, we’re intimately familiar with the quirks of this compound. The molecule carries multiple phenolic hydroxyls, making its antioxidant value obvious to those who watch it resist oxidation better than analogs lacking a full ring-substituted skeleton. In comparison batches where one hydroxyl gets masked or substituted, the reactivity and downstream antioxidant behavior always drop. These little observations, made at the workbench, matter much more than textbook theoretical discussions.

    Practical Experience and Attention to Each Step

    Starting from high-purity phloroglucinol and catechin, we keep source materials tight because slight contamination disrupts the chromene ring closure. No one likes a stubborn emulsion just before vacuum drying, so we use stainless steel lines for phenol transfer, avoiding any contact with copper or brass. Humidity isn’t just an environmental statistic—high humidity means more repeated drying cycles and tighter loss-on-drying control, with operators double-checking the Karl Fischer results for each new drum. Downstream, colleagues in the lab run continuous NMR checks on polymerization risk, which can creep in with excess base.

    Model and Specifications from a Manufacturer’s Perspective

    Over the years, we have settled on a standard production model for 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol, usually offering it as a free-flowing crystalline powder. Particle size varies slightly with each lot, usually between 80–120 mesh, balanced for steady dissolution but stable storage under inert conditions. Precise melting point tracking and HPLC assays match ranges agreed upon with partner labs. Experience reminds us that even trusted machines drift, so we calibrate against certified reference standards before running serial batches.

    Water content stays under 1%, a threshold we repeatedly hit after fine-tuning drying times and checking sample masses on our in-house microbalances. Appearance varies only slightly, with occasional minor color variance, but definitive spectral peaks (UV, FTIR, and 1HNMR) provide complete identity confirmation. Colleagues reviewing older method logs remember the days before our modern rotary evaporators cut hours off from purification and concentrate recovery, giving cleaner end products today. We keep records that help us learn from every new order cycle, with quality improvement born not from policies but from real-life troubleshooting efforts.

    Applications and Customer Feedback that Direct Our Process

    Many firms care about the “why” behind product development. From our seat at the producer’s bench, the calling for this molecule has always come from its well-studied antioxidant, anti-inflammatory, and biological research value. Working with formulation chemists and biologists, we see the direct tie-in: protecting biological samples against reactive oxygen species, screening for potential health and nutraceutical properties, or acting as a testbed for new pharmaceutical leads.

    Our batches get tested not only in classic chemical reactions but also in advanced cellular screens. As researchers ask for more consistent bioactivity, we revised purification protocols to eliminate trace metals, noticing the sharp improvement in assay reproducibility. Customer labs kept reporting increased cell viability scores and better performance in phenol-specific colorimetric tests with our latest lots compared to materials bought from general importers or batch blenders.

    In more established food science uses, processors favor our product for its rapid dispersal and mixability. Feedback loops from partners shape every run; a consistent powder flow and quick solubility mean shorter batch times, less energy use, and more time on formulation instead of troubleshooting. This attention to end-usage delivers a practical edge in daily industrial workflows.

    How Our Manufacturing Process Stands Apart

    Shortcuts and cost-cutting never serve the future. Inexperienced producers or traders often compromise the drying or reduction stages, leading to higher impurity loads or residual solvents. We see firsthand how this affects users: yellow-tinged product, instability during long-term storage, or lower shelf life in formulation. Recrystallization using food-grade ethanol, tight temperature limits, and small-scale monitoring all find a place in our workflow, even as others cut corners to push volume.

    In our experience, outsourcing any stage of the synthesis breaks quality control. All steps—from charging the reactors to pulling vacuum—stay under one roof, directly supervised by people accountable for each outcome. The team relies on muscle memory developed from years of repeated handling, able to catch small signs of batch variability invisible to automated reports. Unlike third-party bulk suppliers, we maintain a clear, traceable line from every kilogram shipped, back through production logs and sample archives kept on site.

    Our purification system avoids cross-contamination by regular deep cleaning and staggered schedules for similar phenolic products. Colleagues new to our team quickly learn that this vigilance stems not only from past mistakes but from stories in the industry: a single hour of inattention can ruin an entire week’s output. We take breaks, rotate shifts, and check each other’s assumptions, knowing that personal accountability drives quality just as much as expensive equipment upgrades do.

    Comparisons with Similar Compounds and Market Alternatives

    Walking through the warehouse, we stock a range of closely related chromenes, but few display the broad oxidative stability of the fully hydroxylated skeleton this product carries. Workaday batches of catechin or flavonol derivatives often lack the triple hydroxyl setup, and this difference jumps out the moment oxidative stress or high pH exposure starts in testing labs. Customers and internal teams alike get longer-lasting performance, especially where repeatable antioxidant action matters.

    Whereas some materials blend in extra excipients or anti-caking agents to mask inconsistent synthesis, our direct process avoids these by refining handling from the outset. Routine, rapid color changes in substandard batches always betray trace metallics or faulty reduction events. Our confidence comes from watching competitor products degrade faster under sunlight or gradual moisture exposure, a reality confirmed by random-sample challenge studies run with outside partners.

    Every once in a while, we see customer returns from buyers lured by lower cost alternatives, only to face batch-to-batch inconsistencies or higher by-product formation. These experiences reaffirm what we already know: the small cost savings at purchase rarely outweigh longer-term headaches connected with unreliable supply. Our face-to-face relationships with users let us gather honest feedback, track recurring challenges, and refine both production planning and storage protocols, leading to fewer returned lots and higher customer trust.

    Challenges Unique to Real-World Manufacturing Settings

    Seasoned operators will know that analytical purity numbers do not guarantee performance in every application. The way a batch crystallizes out of mother liquor, the balance between anhydrate and monohydrate forms, and small shifts in residual acid content all shape final usability. We invest in controlled cooling and anti-solvent protocols, minimizing product loss but always erring on the side of maximum purity even when yields dip. It’s easy to preach about theoretical yields; much harder to consistently achieve them in volatile summer weather or through equipment upgrades.

    Process hiccups arise during transitions—bringing on new team members, scaling up for a big order, or revalidating critical equipment. Training relies on shadowing: new hires pair directly with experienced staffers, learning what too-early vacuum drawdown sounds like or how to spot the sheen of too-hydrated powder in the tray. No digital checklist or remote supplier can substitute for this direct, real-time knowledge.

    Pack-out is another area where detail counts. Clean rooms remain more than just paperwork assurance; batch dust, static, and cross-contamination risks require everyone to buy into solid procedures. We use double-lined barrels, desiccant packs, and real-time water activity sensors, logging every batch’s ambient exposure up to the shipping dock. Multiple times each year, our entire team reviews these logs during after-hours gatherings, comparing seasonal patterns and brainstorming improvements as a matter of course—not just for audits or when prompted by management. Real learning comes from stepping back and spotting long-term patterns, not from just responding to problems as they arise.

    Solutions Born from On-the-Ground Experience

    Valuable change often comes from the hands-on floor, not executive offices. Staff noticing repeat issues with static cling introduced a grounded funnel and new anti-static mats, reducing both labor and potential contamination. Experienced operators brought in ceramic-coated scrapers for batch unloads, minimizing metallic abrasion and keeping finished product truer to its spectral profile. Some of our best workflow upgrades trace back to the maintenance team, who fine-tuned our nitrogen blanketing system so less oxygen creeps in during transfer, preserving color and extending shelf-life for overseas customers.

    We tweak filtration systems and push for incremental change through regular cross-shift huddles. Mid-batch deviations, like slight acid/base mistunings, get flagged in real time. No one assumes a system will always self-correct. In the long view, these incremental changes build reliability—translating into fewer failed customer runs, less waste, and tighter inventory management.

    As regulations shift and customers ask for ever-clearer traceability, we refine labeling, documentation, and chain-of-custody protocols. New digital batch tags now follow every lot from synthesis through to the warehouse, linking physical samples with digital records in our secure archive. This direct connection between process, paperwork, and people demonstrates a chain of accountability, not just compliance.

    Building Trust Through Consistency and Feedback

    Manufacturing isn’t just about pushing out product; it is about seeing each run as a test of previous learning. We listen to repeat users who point out the smallest inconsistency—a subtle shift in powder flow, a finer dust, a slightly slower dissolution rate. This feedback means more than five-star reviews; it shapes our internal checklists and batch-sheet tweaks. We learn to trust the small signs from users in the lab just as much as our internal assay metrics.

    Open shop-door policies let visiting researchers and partners walk the plant, sample archives, and talk with batch leads about specifics. These conversations unlock new uses and spark ideas for product refinements. A food technologist might request a specific grind to speed up blending in a new prototype, or a pharmaceutical researcher raises questions about a rare impurity previously considered unimportant.

    Long-term relationships act as practical safeguards. In an industry shelving big talk and focusing on substance, direct user feedback and hands-on troubleshooting keep our processes transparent, adaptable, and sustainable. By prioritizing customer relationships and team-building over faceless volume metrics, we avoid pitfalls common among larger, disconnected suppliers.

    Looking Forward from a Manufacturer’s Standpoint

    We keep investing in staff education, analytical technology, and process validation—not in response to “market trends” but from recognizing our own daily limitations and room for progress. Next-generation NMR and mass spectrometry run side by side with old-fashioned flasks and labor-intensive washing steps, creating a partnership between tradition and innovation.

    What sets manufacturing apart from trading or reselling comes down to direct responsibility. Everyone—from precursor sourcing managers to QA chemists—shares the risks and rewards of every outgoing kilogram. We own up to each success and failure, learning from patterns rather than isolated errors. The true value of this molecule lies not only in the literature but in the collective experience of every person who handles, tests, and delivers it.

    Reflecting on more than a decade of production, we know the difference between delivering a raw material that simply “meets specs” and shipping a compound shaped by years of iterative learning, continuous improvement, and direct engagement from both the shop floor and end users. Consistent process yields, high antioxidant performance, and a transparent supply chain all stem from this reality.

    Real Expertise, Real Accountability

    Anyone can order a fine chemical and tick boxes off a checklist, but those steps rarely build sustainable, high-performing supply relationships. For us, the daily craft of making 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol draws on collective expertise, careful listening, and attention to the details that matter for every application. From the rotating shifts to final labeling, each process reflects hard-earned lessons and trust earned batch after batch.

    We welcome inspection, dialogue, and challenge. Through the cumulative efforts of chemists, engineers, and support staff, our product reflects what real manufacturing looks like: hands-on care, transparency, and a genuine partnership with those who rely on the materials we produce.