Try searching for...
SCFBio, IIT Delhi
Formula: C28H30O5 | Mol. Weight: 446.50 g/mol
IUPAC: 9,11-dihydroxy-3,3-dimethyl-5,10-bis(3-methylbut-2-enyl)pyrano[3,2-a]xanthen-12-one
CC(=CCC1=CC2=C(C3=C1OC(C=C3)(C)C)C(=O)C4=C(O2)C=C(C(=C4O)CC=C(C)C)O)C