Cyproterone Acetate EP Impurity A

(8R,9S,10R,13S,14S,17R)-17-acetyl-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl acetate

(1R,3aS,3bR,3cS,4aR,6aR,7aS,7bS,7cS,9aS)-1-acetyl-7b,9a-dimethyl-6-oxo-1,2,3,3a,3b,3c,4a,6,6a,7,7a,7b,7c,8,9,9a-hexadecahydrocyclopenta[1,2]cyclopropa[5,6]phenanthro[9,10-b]oxiren-1-yl acetate

(2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR)-6-acetyl-10-chloro-3b,5a-dimethyl-2-oxo-2,2a,3,3a,3b,3c,4,5,5a,6,7,8,8a,8b-tetradecahydrocyclopenta[a]cyclopropa[g]phenanthren-6-yl acetate-d3

(2aR,3aS,3bS,3cS,5aS,6S,7S,8aS,8bR)-6-acetyl-10-chloro-6,7-dihydroxy-3b,5a-dimethyl-3,3a,3b,3c,4,5,5a,6,7,8,8a,8b-dodecahydrocyclopenta[a]cyclopropa[g]phenanthren-2(2aH)-one

(2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR)-6-acetyl-10-chloro-3b,5a-dimethyl-2-oxo-2,2a,3,3a,3b,3c,4,5,5a,6,7,8,8a,8b-tetradecahydrocyclopenta[a]cyclopropa[g]phenanthren-6-yl acetate-13C2 D3

(2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR)-6-acetyl-10-chloro-6-hydroxy-3b,5a-dimethyl-3,3a,3b,3c,4,5,5a,6,7,8,8a,8b-dodecahydrocyclopenta[a]cyclopropa[g]phenanthren-2(2aH)-one-d5

6-Keto Cyproterone Acetate;1ß,2ß-Dihydro-17-hydroxy-3'H-cyclopropa[1,2]pregna-1,4- diene-3,6,20-trione Acetate

(2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR,9S,10S)-6-acetyl-10-chloro-9-hydroxy-3b,5a-dimethyl-2-oxo-2,2a,3,3a,3b,3c,4,5,5a,6,7,8,8a,8b,9,10-hexadecahydrocyclopenta[a]cyclopropa[g]phenanthren-6-yl acetate

Chlormadinone Acetate EP Impurity D; (8R,9S,10R,13S,14S,17R)-17-acetyl-6-chloro-10,13-dimethyl-3-oxo-8,9,10,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl acetate