IUPAC:1-[(3R,3aS,5aR,5bR,7aS,11aS,11bR,13aR,13bS)-5a,5b,8,8,11a,13b-hexamethyl-icosahydro-1H-cyclopenta[a]chrysen-3-yl]ethan-1-one
IUPAC:1-[(3R,3aS,5aR,5bR,7aS,11aS,11bR,13aR,13bS)-5a,5b,8,8,11a,13b-hexamethyl-icosahydro-1H-cyclopenta[a]chrysen-3-yl]ethan-1-one