PREGN-4-ENE-3,20-DIONE,17-HYDROXY-6-ALPHA-METHYL- 17α-Hydroxy-6α-methyl-4-pregnene-3,20-dione, 17α-Hydroxy-6α-methylprogesterone, 6α-Methyl-5-pregnen-17α-ol-3,20-dione, 6-Dihydromegestrol (6S,8R,9S,10R,13S,14S,17R)-17-acetyl-17-hydroxy-6,10,13-trimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one (6S,8R,9S,10R,13S,14S,17R)-17-ethanoyl-17-hydroxy-6,10,13-trimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one 4-Pregnen-6a-Methyl-17-ol-3,20-dione-d7 (6S,8R,9S,10R,13S,14S,17R)-17-acetyl-17-hydroxy-6,10,13-triMethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one Medroxyprogesterone acetate-13C2-d3 6alpha-Methyl-17alpha-hydroxypregn-4-ene-3,20-dione