Formula: C27H40O4 | Mol. Weight: 428.60 g/mol
IUPAC: (1R,2S,4S,5'R,6R,7S,8R,9S,12S,13S,18S)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-10,16-dione
CC1CCC2(C(C3C(O2)CC4C3(C(=O)CC5C4CCC6C5(CCC(=O)C6)C)C)C)OC1