C3A1T1E1C3H4I1N1
15 points
CATECHIN is validvalid
a chemical used in dyeing [n CATECHINS]
one of the tannic acids, extracted from catechu as a white, crystalline substance [n -S]
a chemical used in dyeing [n CATECHINS]
one of the tannic acids, extracted from catechu as a white, crystalline substance [n -S]