finasteride and its Impurities
A 4-azasteroid analogue of testosterone, Finasteride is used for the treatment of enlarged prostrate and pattern hair loss (alopaecia). It is a inhibitor of 5α-reductase enzyme which coverts testosterone to ditestosterone. Finasteride is lipophillic in nature.. Reference standards of Finasteride API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
(3bR,3cS,5aS,6R,8aS,8bS)-N-(tert-Butyl)-3b,5a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]oxireno[2,3-c]quinoline-6-carboxamide
(3bR,3cS,5aS,6R,8aS,8bS)-N-(tert-Butyl)-3b,5a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]oxireno[2,3-c]quinoline-6-carboxamide
Catalogue No.:PA 06 18630
CAS :
NA
Molecular Formula : C23H36N2O3
Molecular Weight : 388.55
(4aR,4bS,6aS,7R,9aS,9bR,11aR)-N-(tert-Butyl)-7-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
(4aR,4bS,6aS,7R,9aS,9bR,11aR)-N-(tert-Butyl)-7-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
Catalogue No.:PA 06 18640
CAS :
NA
Molecular Formula : C23H36N2O3
Molecular Weight : 388.55
(4aR,4bS,6aS,7R,9aS,9bR)-N-(tert-Butyl)-7-hydroxy-4a,6a-dimethyl-2-oxo-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
(4aR,4bS,6aS,7R,9aS,9bR)-N-(tert-Butyl)-7-hydroxy-4a,6a-dimethyl-2-oxo-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
Catalogue No.:PA 06 18650
CAS :
206351-39-5
Molecular Formula : C23H36N2O3
Molecular Weight : 388.55
(3S,3aS,5aS,6R,9aS,9bS)-6-(2-Carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic Acid
(3S,3aS,5aS,6R,9aS,9bS)-6-(2-Carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic Acid
Catalogue No.:PAI 06 015010
CAS :
NA
Molecular Formula : C19H28O5
Molecular Weight : 336.43
(4aR,4bS,6aS,7S,9aS,9bS)-N-(1,1-Dimethylethyl)-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-4a,6a-dimethyl-2-oxo-1H-indeno[5,4-f]quinoline-7-carboxamide
(4aR,4bS,6aS,7S,9aS,9bS)-N-(1,1-Dimethylethyl)-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-4a,6a-dimethyl-2-oxo-1H-indeno[5,4-f]quinoline-7-carboxamide
Catalogue No.:PAI 06 015020
CAS :
166896-74-8
Molecular Formula : C23H36N2O2
Molecular Weight : 372.55
Methyl (4aR,6aS,7S)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylate
Methyl (4aR,6aS,7S)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylate
Catalogue No.:PA 06 0181001
CAS :
104214-18-8
Molecular Formula : C20H31NO3
Molecular Weight : 333.47
3-((3S,3aS,5aS,6R,9aS,9bS)-3-(methoxycarbonyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic acid
3-((3S,3aS,5aS,6R,9aS,9bS)-3-(methoxycarbonyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic acid
Catalogue No.:PA 06 0181002
CAS :
92472-33-8
Molecular Formula : C20H30O5
Molecular Weight : 350.46
(4aR,4bS,6aS,7R,9aS,9bS,11aR)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
(4aR,4bS,6aS,7R,9aS,9bS,11aR)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
Catalogue No.:PA 06 0181003
CAS :
140375-21-9
Molecular Formula : C23H36N2O2
Molecular Weight : 372.55
(4aR,4bS,6aS,7R,9aS,9bS,11aS)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
(4aR,4bS,6aS,7R,9aS,9bS,11aS)-N-(tert-Butyl)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide
Catalogue No.:PA 06 0181004
CAS :
NA
Molecular Formula : C23H36N2O2
Molecular Weight : 372.55
3-((3aS,5aS,6R,9aS,9bS)-3-(Tert-Butylcarbamoyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic Acid
3-((3aS,5aS,6R,9aS,9bS)-3-(Tert-Butylcarbamoyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalen-6-yl)propanoic Acid
Catalogue No.:PAI 06 015023
CAS :
NA
Molecular Formula : C23H37NO4
Molecular Weight : 391.55