Try searching for...
SCFBio, IIT Delhi
Formula: C30H20O8 | Mol. Weight: 508.50 g/mol
IUPAC: 1,8-dihydroxy-6-methyl-2-(4,5,9-trihydroxy-2-methyl-10-oxoanthracen-9-yl)anthracene-9,10-dione
CC1=CC2=C(C(=C1)O)C(=O)C3=C(C2=O)C=CC(=C3O)C4(C5=C(C(=CC=C5)O)C(=O)C6=C4C=C(C=C6O)C)O