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Tea polyphenols                                          
Botanical Source: Camellia sinensis O. Ktze
CAS NO:84650-60-2
Molecular formular:C17H19N3O
Molecular weight:281.36
Test method:HPLC
Appearance: brownish yellow fine powder, water solution appears in red.

Specifications
Tea Polyphenols 98% : catechin 85%min, EGCG 50% min;
Tea Polyphenols 98%: catechin 80%min, EGCG 45% min;
Tea Polyphenols 95%: catechin 65%min, EGCG 40% min;
Tea Polyphenols 30%: catechin 15%min, EGCG 5% min;