3-beta,16-beta-Dihydroxy-11-oxo-5-alpha-pregn-17(20)-en-21-oic acid, gamma-lactone 337-67-7 5-alpha-Pregn-17(20)-en-21-oic acid, 3-beta,16-beta-dihydroxy-11-oxo-, gamma-lactone 5alpha-Pregn-17(20)-en-21-oic acid, 3beta,16beta-dihydroxy-11-oxo-, gamma-lactone (8CI) NSC 66816 Pregn-17(20)-en-21-oic acid, 3,16-dihydroxy-11-oxo-, gamma-lactone, (3-beta,5-alpha,16-beta)- Pregn-17(20)-en-21-oic acid, 3,16-dihydroxy-11-oxo-, gamma-lactone, (3beta,5alpha,16beta)- (9CI) U 18317