Try searching for...
SCFBio, IIT Delhi
Formula: C10H6O5 | Mol. Weight: 206.15 g/mol
IUPAC: 4,5,7-trihydroxynaphthalene-1,2-dione
C1=C(C=C(C2=C1C(=O)C(=O)C=C2O)O)O