Try searching for...
SCFBio, IIT Delhi
Formula: C17H14O5 | Mol. Weight: 298.29 g/mol
IUPAC: 1-hydroxy-2,3-dimethoxy-7-methylanthracene-9,10-dione
CC1=CC2=C(C=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)OC)OC