常用名: 3β,7β,15β-Trihydroxy-11-oxo-lanosta-8-en-24→20 lactone
常用名: 3β,7β,15β-Trihydroxy-11-oxo-lanosta-8-en-24→20 lactone
IUPAC: 5-[(1S,3R,3aR,4S,5aR,7S,9aS,11aR)-3,4,7-trihydroxy-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]-5-methyloxolan-2-one
IUPAC: 5-[(1S,3R,3aR,4S,5aR,7S,9aS,11aR)-3,4,7-trihydroxy-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]-5-methyloxolan-2-one