Try searching for...
SCFBio, IIT Delhi
Formula: C20H30O5 | Mol. Weight: 350.40 g/mol
IUPAC: (1S,4aS,6aS,8R,10aS,10bR)-8-ethenyl-4,4,6a,8,10b-pentamethyl-3-oxo-4a,5,6,9,10,10a-hexahydro-1H-pyrano[3,4-f]chromene-1-carboxylic acid
CC1(C2CCC3(C(C2(C(OC1=O)C(=O)O)C)CCC(O3)(C)C=C)C)C