(2S-(2alpha,3beta(2'S*,3'S*)))-2,2'-Bis(3,4-dihydroxyphenyl)-2,2',3,3'-tetrahydro-3',5,5',7,7'-pentahydroxy(3,8'-bi-4H-1-benzopyran)-4,4'-dione (3,8'-Bi-4H-1-benzopyran)-4,4'-dione, 2,2',3,3'-tetrahydro-2,2'-bis(3,4-dihydroxyphenyl)-3',5,5',7,7'-pentahydroxy-, (2S-(2-alpha,3-beta(2'S*,3'S*)))- 73428-17-8 EINECS 277-471-6 Manniflavanone