Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Puerarin

    • Product Name Puerarin
    • Alias Kudzu Isoflavone
    • Einecs 210-476-5
    • 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
    Specifications

    HS Code

    996802

    Name Puerarin
    Chemical Formula C21H20O9
    Molecular Weight 416.38 g/mol
    Cas Number 3681-99-0
    Appearance White to off-white crystalline powder
    Solubility Slightly soluble in water, soluble in ethanol
    Source Extracted from Pueraria lobata (Kudzu root)
    Melting Point 182-184°C
    Purity Typically ≥98%
    Storage Conditions Store in a cool, dry place, away from light
    Usage Used in pharmaceuticals, supplements, and research
    Synonyms Daidzein 8-C-glucoside
    Stability Stable under recommended storage conditions
    Odour Odorless

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

    Packing & Storage
    Packing The 10g Puerarin is packaged in a sealed, amber glass bottle with a tamper-evident cap, labeled with product and safety details.
    Shipping Puerarin is shipped in tightly sealed, moisture-proof containers to protect it from light and humidity. The chemical is typically packed according to international regulations for non-hazardous substances, ensuring safe handling during transport. Proper labeling and documentation accompany each shipment to guarantee compliance with safety and quality standards.
    Storage Puerarin should be stored in a cool, dry place, protected from light and moisture. Ideally, it should be kept in a tightly sealed container at 2-8°C (refrigerator) to maintain stability and prevent degradation. Avoid exposure to heat, direct sunlight, and humidity. For long-term storage, consider keeping it at -20°C. Proper storage ensures the preservation of its chemical integrity and effectiveness.
    Application of Puerarin

    Purity 98%: Puerarin 98% purity is used in pharmaceutical formulations, where it ensures high bioavailability and efficacy in cardiovascular therapies.

    Molecular Weight 416.4 g/mol: Puerarin with molecular weight 416.4 g/mol is used in drug synthesis applications, where it contributes to reproducible reaction profiles and consistent therapeutic outcomes.

    Particle Size <10 μm: Puerarin with particle size below 10 μm is used in tablet manufacturing, where it provides improved dissolution rates and enhanced absorption kinetics.

    Stability Temperature 25°C: Puerarin with a stability temperature of 25°C is used in nutraceutical supplement packaging, where it maintains chemical integrity during storage and distribution.

    Solubility 10 mg/mL (in DMSO): Puerarin with solubility of 10 mg/mL in DMSO is used in injectable formulations, where it enables effective parenteral delivery and rapid onset of action.

    Melting Point 222-224°C: Puerarin with a melting point of 222-224°C is used in solid dosage form development, where it supports thermal stability during processing.

    HPLC Assay ≥99%: Puerarin with HPLC assay not less than 99% is used in clinical trial material preparation, where it ensures batch-to-batch consistency and regulatory compliance.

    Heavy Metals <10 ppm: Puerarin with heavy metals content below 10 ppm is used in oral health supplements, where it guarantees safety and minimizes toxicological risk.

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    Certification & Compliance
    More Introduction

    Puerarin: Precision Craft for Demanding Applications

    What Puerarin Means for Professionals

    Producing Puerarin requires honest know-how and dedicated quality control. Over years of operation, we’ve seen simple raw material selection is never enough. Each batch starts from Pueraria lobata root harvested at peak season. Strict timing and soil traceability keep batch variations in check. Our processing setup allows full extraction with minimal degradation, preventing the brownish cast that often signals overcooked starting material. Each kilogram we deliver gets tracked from field through isolating, concentrating, and microfiltration, right down to packing. We demand an off-white to pale-yellow crystalline powder, free from specks, and confirm it ourselves with HPLC to keep purity above 98%. Moisture and ash levels stay strictly below 2.0%—hard-won limits based on real stability tests, not just regulatory minimums.

    Unlike simpler plant extracts, Puerarin is a single compound, which means every customer gets repeatable performance for formulation development. Crude powder mixtures lead to unpredictability—our approach fixes that. We calibrate each run’s solubility profile and routinely spot-check for heavy metals and pesticides. Many in this industry try to push costs down with casual extraction, but that always shows up as sticky, hygroscopic lots or subpar shelf life. From our experience, corners cut in solvent ratios or temperature control never pay off down the line.

    Puerarin Applications Built on Trust

    End-users in food, dietary supplement, cosmetic, and pharmaceutical lines want traceability. Safety teams demand tight controls over solvents and residuals. We keep our Puerarin residue ethanol below 500 ppm and support both bulk and GMP-grade needs. Some industries want finer mesh, so we produce 80-120 mesh on demand to eliminate dusting or caking in automated lines. Our own in-house R&D group works directly with clinical partners and formulators. Routine pilot runs preceded our commercial launches and each spec adjustment (such as tighter microbial counts for sensitive applications) follows an actual request, never guesswork.

    The supplement sector requests Puerarin for heart health, circulation, and antioxidant products. It takes more than literature research—real stability and blendability matter for large batches. Users integrating Puerarin into drinks, capsules, or functional foods report cleaner mouthfeel and easier mixing with our material, which comes from finer granules and pre-screened bulk density. Over time, feedback reminds us nothing substitutes for hands-on formulation troubleshooting. Tablets compress without excessive capping or dust, and beverages flow clear, no sediment, even at modest dosages (commonly 50-200 mg per serving), because there’s no residual root fiber or waxes left.

    Cosmetic formulators want consistent particle size to avoid clogging spray nozzles or streaking creams. Our process sieves to uniform mesh sizes. Natural skincare lines use it for calming skin; we provide both efficacy data and support customers with repeated microbe testing. We’ve moved away from vague “extract” claims—customers use our precise assay figures (always ≥98%) on their own labels. Contact with our technical team is a fixture for clients navigating new product launches. They find our post-shipment analytics and support keeps projects on schedule. We have reformulated at least five partner lines after a single round of feedback, instead of retreating to standard specs many producers will not change for custom requirements.

    Product Differentiation—Why Grade and Consistency Matter

    Anyone sourcing botanical intermediates knows there’s a glut of uncertain quality. Origin, age of material, and handling make a bigger difference than many imagine. We use pure Puerarin, not “kudzu root extract” blends, and only offer clear documentation on origin. Blends degrade performance and cause formulation headaches. We verify each consignment of root with DNA barcoding because misidentification or adulteration has real-world impacts. In contrast to the granular inconsistencies common in resold or third-party material, our lots hold steady in appearance, solubility, and potency.

    Labs and buyers tell us horror stories about Puerarin turning up as a sticky, amorphous powder one week, flaky the next. That usually traces to improper drying or mixed-source roots. Serious manufacturers avoid this because end use failures come back to bite. Our production line maintains precisely controlled vacuum and temperature parameters, and drying time is always batch logged. This means no variation in bulk density or compressibility from lot to lot. Every claim we make about stability or handling comes from years of in-house trials and customer checks—not off-the-shelf supplier statements.

    Our Puerarin’s HPLC retention time and UV scan figures stay consistent batch to batch. We measure actual content, report actual stability, and provide the certificate of analysis for each order. By producing only natural-origin material and refusing synthetic conversions, we sidestep problems of regulatory recognition and support clean-label requirements overseas. Some industrial suppliers cut corners or buy from shadow brokers—picking up off-spec material and then blending to mask inconsistencies. End-users discover flaws too late, when analytical re-testing uncovers the mismatch. No one benefits from “variable purity” or off-odor surprises at audit.

    Controlling Purity and Safety, Batch After Batch

    High-volume users look past the glossy words—you learn to distrust generic “over 90% purity” claims. We keep purity tightly pegged at 98% or higher, as confirmed on each batch release. We’ve built our own quality lab for cross-comparison. Each batch starts with confirming raw material identification and testing for known adulterants; we’ve seen how often supply chains pass through middlemen, risking dilution or contamination. Failures on heavy metals or pesticides cost real money and reputation. Rather than send spot checks to external labs and wait on answers, our team manages everything internally for immediate corrections.

    Where regulations change—such as shifting allowable solvent residue levels in key markets—we preemptively adjust our processes. Early iterations taught us that solvent selection affects both toxicity and extraction yield. We stick with safe, food-grade ethanol, avoiding methanol or acetone. Ethanol brings out the Puerarin content with far less chance of forming unwanted byproducts. Our residue levels routinely pass GMP and export requirements for Japan, Europe, and the US without headaches. Microbial loads also matter—most crude extracts carry unknown spore counts. By limiting moisture and packing under inert gases, we keep yeast and mold below detectable levels.

    Production records track every adjustment, so chronic issues don’t get glossed over between campaigns. This helps partners pass supplier audits and retain access to demanding markets. Our in-house microbiology lab screens every lot, focusing on both total counts and pathogens like Salmonella or E. coli, something many bulk suppliers skip unless pressed. The same rigor applies to allergen and gluten controls—no root or dust ever crosses over from wheat-based lines. That lets our Puerarin pass the strictest ingredient rules in the Americas and Europe.

    Meeting the Real-World Demands of Formulators and Brands

    Demand for cleaner ingredients—free of solvents, pesticides, and unknown fillers—has grown. We serve clients who want identity, traceability, and proof of handling. Most buyers see their own tests confirm our numbers, which guarantees trust. Regulatory filings or project launches don’t pause for poorly defined ingredients. In fact, for brands aiming to export or build out clinical documentation, inconsistent material undercuts the entire case for repeat sales. We support our clients primarily by preventing problems, not solving them after the fact.

    Our process allows us to quickly shift grade, mesh size, or assay, and provide fresh documentation. Some customers require cGMP or ISO-certified documentation, others need single-lot production for revalidation. All benefit from batch-by-batch traceability. Our Puerarin comes with the background every auditor looks for: documented chain of custody from field, full lab data, and confirmed country of origin (ours based directly in-country with field visits, never resold). We do not outsource to brokers or dilute with cheaper regional blends. If drought, pests, or supply issues threaten the crop, we keep customers updated and plan well ahead, so no one runs out mid-cycle.

    In cosmetics, where supply chain transparency is under a microscope, every formulation change threatens brand image. We partner directly with local labs to review Puerarin’s antioxidant and calming effects, allowing our customers to cite real efficacy data instead of relying on third-party literature. This hands-on involvement brings immediate insight into how different extraction methods or powder handling affect finished cream or emulsion looks, absorption, and shelf life. Collaboration with developers testing new delivery systems is standard—most recently with micronized Puerarin in sensitive skin treatments. All such adaptations happen on the back of direct feedback rather than guessing.

    Comparing Puerarin Grades—Direct Benefits for End Users

    Not all Puerarin offers the same benefits. Bulk “kudzu extract” powders can sit anywhere from 10% to 80% Puerarin content. The performance, taste, and shelf life show it. Poorly purified powders gum up equipment, introduce bitterness, or destabilize tablets. As manufacturers, we have tested every common alternative—what always stands out is ease of blending and reliable analytical signatures. Finished consumer products do not tolerate off-flavors, color drift, or odd smells, each of which traces back to contaminating saponins, glycosides, or unfiltered root protein. We see no advantage in chasing marginal cost savings if that means compounding workflow headaches for brands or processors.

    Single-compound Puerarin provides consistency batch after batch. We maintain verified content, confirmed by HPLC, which minimizes need for re-testing at your own labs. We have backed this up by supporting brands through export audits, retesting requirements, and adverse event investigations—every time, keeping our paperwork and samples ready for review. Powder from us will not agglomerate under typical humidity conditions; routine shelf-life checks show aroma and flow change little over 24 months, thanks to tight moisture control and vacuum packaging.

    High-purity product leads to better color, taste, dissolution, and targeted physiological impact. In sensitive applications—like medicated patches, injectable preparations, or functional foods—unknown admixtures introduce real risks. We offer support for secondary testing or method development, and keep reference standards ready for customer use. Many clients have shifted to our product after running up against batch failures, taste masking, or inconsistent solubility from lower-cost alternatives. We understand a failed batch is never “just bad luck”—it signals someone upstream dropped steps for speed or price.

    Solutions and What Sets Manufacturers Apart

    Shortcuts in raw material procurement or extraction betray themselves. Field visits to root suppliers are not optional; we routinely verify that no pesticides or non-authorized herbicides are applied. We have invested in cold-chain and controlled drying stations right at the harvesting point. This prevents breakdown and browning, which undermines both yield and finished product value. Our manufacturing site uses advanced filtration, so solvent residues and non-target plant parts get removed at an early stage. Heavy metals occasionally threaten high-volume batches, so we only use water sources tested quarterly and validated by third-party labs.

    Our manufacturing team has developed proprietary steps—ultrafiltration, vacuum drying, multi-stage crystallization—which stand between raw kudzu root powder and pharma-grade Puerarin. We do not borrow from bulk food extractors who often “wash and dry” crude powder for fast sales. Years of stability trials and systematic problem-solving allow us to address questions on storage, formulation, and regulatory adaptation quickly. Auditors and regulatory officers have seen our process hundreds of times—putting an end to drawn-out compliance reviews.

    A hands-on relationship with academic labs means every refinement meets genuine application needs, not abstract compliance rules. We participate in collaborative research on functional benefits, safety toxicology, and formulation adaptability. As Puerarin supports cardiovascular, metabolic, and neurological products, it matters that every supply is genuinely what the spec sheet claims. We bring our operational lessons directly to every client: how small variations in drying, solvent, or mesh can shift product performance, and what can be done to keep supply lines reliable.

    For partners introducing Puerarin to new geographies—especially export-regulated destinations—having verified ingredient and process data locks in product acceptability. Many end-users in Asia and Europe have found their own brand reputation built on the back of our routine supply. If a batch does not meet our own internal standards, we rework or discard it and never rely on claims that “this lot should be fine.”

    Practical Outcomes for Real Businesses

    Brands and OEMs now expect more than generic “plant extract” promises. Authentic traceability, batch data, hands-on problem solving, and unmatched consistency—these are now the baseline. Our commitment to quality lets clients plan launches, manage recalls, and handle regulatory submissions with confidence. We deliver what we say, every batch: a stable, high-content Puerarin powder, processed for easy use in food, supplement, pharma, and skincare lines. Our customers’ successes and difficulties feed back into our process refinement, so both sides move forward together in a business built on reputation, not risk-taking.

    In the end, investing in better manufacturing brings measurable returns. Lost sales or recalls from uncertain intermediates far outweigh the small cost benefits from cut-rate suppliers. As a dedicated Puerarin manufacturer, our work aims to minimize worry, maximize performance, and deliver exactly what our buyers expect—batch after batch. Each order moves from root field to finished drum under eyes that check, verify, and adjust for the next round, year after year.