Formula: C30H20O11 | Mol. Weight: 556.50 g/mol
IUPAC: 8-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-2,3-dihydrochromen-3-yl]-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one
C1=CC(=CC=C1C2=CC(=O)C3=C(O2)C(=C(C=C3O)O)C4C(OC5=CC(=CC(=C5C4=O)O)O)C6=CC(=C(C=C6)O)O)O