We are Xi an Guanyu Bio-tech Co. based in xian , China. We are member of Tradekey.com since December, 2011. Our business is related to Health & Medicines industry and we specifically deal in Plant extract. Please find our product details below: Sell Oxymatrine Product Name: Oxymatrine Botanical source: Sophora flavescens Ait. Specification: Oxymatrine >98% CAS NO: 16837-52-8 Sell Matrine Product Name: Matrine Botanical source: Sophora flavescens Ait CAS NO: 519-02-8 Molecular formula: C15H24N2O Molecular weight: 248.36 Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.