Try searching for...
SCFBio, IIT Delhi
Formula: C16H12O4 | Mol. Weight: 268.26 g/mol
IUPAC: 2-hydroxy-1-methoxy-7-methylanthracene-9,10-dione
CC1=CC2=C(C=C1)C(=O)C3=C(C2=O)C(=C(C=C3)O)OC