Synonyms: [4,8':4',8''-Ter-2H-1-benzopyran]-3,3',3'',5,5',5'',7,7',7''-nonol,2,2',2''-tris(3,4-dihydroxyphenyl)-3,3',3'',4,4',4''-hexahydro-, [2R-[2a,3a,4b[2'R*,3'R*,4'S*(2''R*,3''R*)]]]-; Cinnamtannin A1; Proanthocyanidin C1;Procyanidin C1; Procyanidol C1