Formula: C30H20O11 | Mol. Weight: 556.50 g/mol
IUPAC: 6-[5-(5,7-dihydroxy-4-oxo-2,3-dihydrochromen-2-yl)-2,3-dihydroxyphenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one
C1C(OC2=CC(=CC(=C2C1=O)O)O)C3=CC(=C(C(=C3)O)O)C4=C(C5=C(C=C4O)OC(=CC5=O)C6=CC=C(C=C6)O)O