Try searching for...
SCFBio, IIT Delhi
Formula: C19H30O2 | Mol. Weight: 290.40 g/mol
IUPAC: (3R,4aR,6aR,9aS,9bR)-3-ethenyl-3,4a,7,7,9a-pentamethyl-2,5,6,6a,9,9b-hexahydro-1H-cyclopenta[f]chromen-8-one
CC1(C2CCC3(C(C2(CC1=O)C)CCC(O3)(C)C=C)C)C