IUPAC: (2E,6R)-6-[(1R,3S,3aR,5aR,7S,9aS,11aR)-3,7-dihydroxy-3a,6,6,9a,11a-pentamethyl-10-oxo-1H,2H,3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid
IUPAC: (2E,6R)-6-[(1R,3S,3aR,5aR,7S,9aS,11aR)-3,7-dihydroxy-3a,6,6,9a,11a-pentamethyl-10-oxo-1H,2H,3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid