Try searching for...
SCFBio, IIT Delhi
Formula: C23H24O6 | Mol. Weight: 396.40 g/mol
IUPAC: 1,2,5,6-tetrahydroxy-4-(2-methylbut-3-en-2-yl)-7-(3-methylbut-2-enyl)xanthen-9-one
CC(=CCC1=CC2=C(C(=C1O)O)OC3=C(C2=O)C(=C(C=C3C(C)(C)C=C)O)O)C