(8,8'-BI-1H-NAPHTHO(2,3-c)PYRAN)-1,1',6,6',9,9'-HEXONE, 3,3',4,4'-TETRAHYDRO-10, (8,8'-Bi-1H-naphtho(1,2-c)pyran)-1,1',7,7',10,10'-hexone, 3,3',4,4'-tetrahydro-6,6'-dihydroxy-9,9'-dimethoxy-3,3'-dimethyl-, (3R,3'R)- (8CI) (8,8'-Bi-1H-naphtho(2,3-c)pyran)-1,1',6,6',9,9'-hexone, 3,3',4,4'-tetrahydro-10,10'-dihydroxy-7,7'-dimethoxy-3,3'-dimethyl-, (R-(R*,R*))- 1685-91-2 NSC 264720 Xanthomegnin Xanthomegnine