Standardized Quercetin Dihydrate Powder | 95%-98% (HPLC / USP) Sophora Japonica

Standardized Quercetin Dihydrate Powder (Sophora japonica L., CAS No. 6151-25-3) supplied by Green Spring Technology is a high-purity natural bioflavonoid standardized to 95.0% - 98.0% Quercetin via HPLC. Derived from non-GMO Sophora japonica flower buds using purified water and food-grade ethanol, it provides potent antioxidant, immune health, respiratory support, and cellular protection benefits for global nutraceutical brands. Key Specifications & Quality Control: - Botanical Source: Sophora japonica L. (Flower Bud) | CAS No. 6151-25-3 - Assay: Min 95.0% or Min 98.0% Quercetin (HPLC, Anhydrous Basis) - Appearance & Color: Bright yellow to greenish-yellow free-flowing crystalline powder - Particle Size & Grades: Min 95% through 80 mesh (granular, heavy, and micronized grades available) - Loss on Drying: 8.0% - 12.0% (Standard dihydrate moisture range per USP) - Heavy Metals: Pb <= 1.0 ppm, As <= 1.0 ppm, Cd <= 0.5 ppm, Hg <= 0.1 ppm - Purity & Safety: 100% Non-GMO, FDA GRAS & USP compliant, PAH4 & pesticide compliant, ETO-free Applications: 1. Immune & Respiratory Supplements: Daily antioxidant capsules, tablets, and synergistic formulas with Vitamin C, Zinc, Bromelain, or Elderberry. 2. Sports Nutrition & Healthy Aging: Post-workout recovery blends, cardiovascular support, and longevity formulas. 3. Functional Foods & Cosmetics: Fortified nutritional powders and COSMOS-compliant anti-aging skincare. Why Source from Green Spring Technology? - Certified Facility: Manufactured under BRCGS (Grade A), IFS, FDA Registered, ISO 22000, ISO 9001, COSMOS, Halal, and Kosher systems. - Reliable B2B Supply: 1 kg MOQ for pilot trials, 25 kg/fiber drum bulk packaging, 3-7 working days lead time, and 10-50g free R&D samples with full COA/TDS/MSDS documentation. Contact Green Spring Technology today for wholesale pricing, batch COA, or a free R&D sample.