Try searching for...
SCFBio, IIT Delhi
Formula: C19H18O7 | Mol. Weight: 358.30 g/mol
IUPAC: 1-hydroxy-2,6,7,8-tetramethoxy-3-methylanthracene-9,10-dione
CC1=CC2=C(C(=C1OC)O)C(=O)C3=C(C(=C(C=C3C2=O)OC)OC)OC