(8R,9S,10R,13S,14S,17R)-17-hydroxy-17-(1-hydroxyethyl)-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one 652-69-7 17alpha,20alpha-Dihydroxypregn-4-en-3-one C04518 (20S)-17,20-dihydroxypregn-4-en-3-one CHEBI:16418