Formula: C27H40O4 | Mol. Weight: 428.60 g/mol
IUPAC: (4S,5S)-5-methoxy-4-[(5R,9R,10R,13S,14S,17S)-4,4,10,13,14-pentamethyl-3-oxo-1,2,5,6,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]oxolan-2-one
CC1(C2CC=C3C(C2(CCC1=O)C)CCC4(C3(CCC4C5CC(=O)OC5OC)C)C)C