16-Dehydropregnanolone 16-Pregnenolone 3-alpha-Hydroxy-5-beta-pregn-16-en-20-one 5-beta-Pregn-16-en-20-one, 3-alpha-hydroxy- 566-60-9 Pregn-16-en-20-one, 3-hydroxy-, (3-alpha,5-beta)- (9CI)