223387-28-8
5,7,3',4'-tetra-O-benzyl-(-)-epicatechin-(4β,8)-[5,7,3',4'-tetra-O-benzyl-(-)-epicatechin]
→
~92%
79907-44-1
B2-3,3'-di-O-gallate
87292-49-7
tetrabeuzyl-(-)-epicatechin