Try searching for...
SCFBio, IIT Delhi
Formula: C18H14O9 | Mol. Weight: 374.30 g/mol
IUPAC: 10-formyl-3,8,9-trihydroxy-1,4,7-trimethyl-6-oxobenzo[b][1,4]benzodioxepine-2-carboxylic acid
CC1=C2C(=C(C(=C1O)O)C=O)OC3=C(C(=C(C(=C3C)C(=O)O)O)C)OC2=O