Try searching for...
SCFBio, IIT Delhi
Formula: C28H32O5 | Mol. Weight: 448.50 g/mol
IUPAC: 2-[(2E)-3,7-dimethylocta-2,6-dienyl]-1,3,5-trihydroxy-4-(3-methylbut-2-enyl)xanthen-9-one
CC(=CCCC(=CCC1=C(C(=C2C(=C1O)C(=O)C3=C(O2)C(=CC=C3)O)CC=C(C)C)O)C)C