Try searching for...
SCFBio, IIT Delhi
Formula: C17H18O5 | Mol. Weight: 302.32 g/mol
IUPAC: 1,3,5-trimethoxy-9,10-dihydrophenanthrene-2,7-diol
COC1=CC(=CC2=C1C3=CC(=C(C(=C3CC2)OC)O)OC)O