Polyphenols Scientific name: Camellia sinensis abbreviation: GTP Alias: tea tannin, tea tannin formula: C17H19N3O Molecular Weight: 281.36 CAS: 84650-60-2 Specification: 50%, 60%, 65%, 70%, 75%, 80 %, 98% Physical Properties: 1. Appearance: white crystals. 2 is soluble in water and organic solvents, taste bitter. Stability: Stable at pH4-8. In case of strong alkalis, strong, light, heat and transition metal perishable. The highest temperature in a heat for half an hour, up to about 250 ℃, the ferric ions in the decomposition. Packaging: 25 kg / drum BondsInAsia Hubei Chemical Co., Ltd. is located in nine provinces of Hubei Province, Wuhan Wujiashan cross-strait high-tech industrial development park is a research, operating in one of modern chemical enterprise, the company pursues "quality excellent price good service, so customer satisfaction "business principles, and adhere to rely on technological progress, and constantly develop new products, while maintaining complete quality management system, supply and marketing process, a rigorous, comprehensive quality control, to ensure to provide customers with a class products and services.