(20R)-17,20-Dihydroxypregn-4-en-3-one 1662-06-2 17-DHP 17alpha,20beta-Dihydroxypregn-4-en-3-one 17alpha,20beta-Dihydroxyprogesterone 17alpha-Hydroxy-20beta-dihydroprogesterone Pregn-4-en-3-one, 17,20-dihydroxy-, (20R)-