5,5',7,7'-Tetrahydroxy-2,2'-bis(4-hydroxyphenyl)-4H,4'H-3,8'-bichromene-4,4'-dione; 8-[5-(5,7-dihydroxy-4-oxochromen-2-yl)-2-hydroxyphenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one; [3,8'-Bi-4H-1-benzopyran]-4,4'-dione, 5,5',7,7'-tetrahydroxy-2,2'-bis(4-hydroxyphenyl)-; NSC 295677; 4H-1-Benzopyran-4-one, 8-(5-(5,7-dihydroxy-4-oxo-4H-1-benzopyran-2-yl)-2-hydroxyphenyl)-5,7-dihydroxy-2-(4-hydroxyphenyl)-; 8-[5-(5,7-dihydroxy-4-oxo-4H-chromen-2-yl)-2-hydroxyphenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one
2-8°C