Try searching for...
SCFBio, IIT Delhi
Formula: C15H24O | Mol. Weight: 220.35 g/mol
IUPAC: (4aS,8aS)-3,4,4a,8,8-pentamethyl-5,6,7,8a-tetrahydro-1H-naphthalen-2-one
CC1=C(C2(CCCC(C2CC1=O)(C)C)C)C