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【Name】：Oligomeric Proantho Cyanidins(OPC)
【Synonyms】：5,7,3',4'-tetrahydroxyflavan-3-ol
【Specification】：≥40%，60%，80%，95%
【Molecular Formula】：(C30H26O12)n (C44H32O12)n n=2-4
【Molecular Weight】：290.23
【 CAS No 】：20315-25-7
【Appearance】：Brown powder
【Solubility】：very soluble in water ethanol
【Physics】：
【Analytical method】：UV detector
【Particle size】：100 mesh
【Plant origin】：Grape Seed
【Storage】：Store in a cool and dry area, keep sealed and keep away from direct light, high-temperature
【Shelf Life】：three years when stored properly
【Packing】：Double-deck plastic bag,pack with Drum outside