Try searching for...
SCFBio, IIT Delhi
Formula: C20H26O5 | Mol. Weight: 346.40 g/mol
IUPAC: (1S,8S,11S,13R,17S,18S,19R)-13,17-dihydroxy-14,14,18-trimethyl-4,10-dioxapentacyclo[9.7.1.03,7.08,19.013,18]nonadeca-3(7),5-dien-9-one
CC1(CCC(C2(C1(CC3C4C2CC5=C(C4C(=O)O3)C=CO5)O)C)O)C