Try searching for...
SCFBio, IIT Delhi
Formula: C30H24O6 | Mol. Weight: 480.50 g/mol
IUPAC: 8-(4,7-dihydroxy-3-methoxy-9,10-dihydrophenanthren-1-yl)-6-methoxyphenanthrene-2,5-diol
COC1=C(C2=C(CCC3=C2C=CC(=C3)O)C(=C1)C4=CC(=C(C5=C4C=CC6=C5C=CC(=C6)O)O)OC)O