loteprednol and its Impurities
Loteprednol used to treat inflammations of the eye. It is a corticosteroid. Reference standards of Loteprednol API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Chloromethyl 9-chloro-17a-ethoxycarbonyloxy-11beta-hydroxy-3-oxoandrosta-1,4-diene-17beta-carboxylate
Chloromethyl 9-chloro-17a-ethoxycarbonyloxy-11beta-hydroxy-3-oxoandrosta-1,4-diene-17beta-carboxylate
Catalogue No.:PA 12 0561002
CAS :
207670-58-4
Molecular Formula : C24H30Cl2O7
Molecular Weight : 501.4


(8S,9R,10S,11S,13S,14S,17R)-chloromethyl9,11-dichloro-17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
(8S,9R,10S,11S,13S,14S,17R)-chloromethyl9,11-dichloro-17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
Catalogue No.:PA 12 0561003
CAS :
207670-57-3
Molecular Formula : C24H29Cl3O6
Molecular Weight : 519.84


Methyl (8S,9S,10R,11S,13S,14S,17R)-17-((ethoxycarbonyl)oxy)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
Methyl (8S,9S,10R,11S,13S,14S,17R)-17-((ethoxycarbonyl)oxy)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
Catalogue No.:PA 12 0561005
CAS :
182068-96-8
Molecular Formula : C24H32O7
Molecular Weight : 432.51


Methylene (8S,8'S,10S,10'S,13S,13'S,14S,14'S)-bis(17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate)
Methylene (8S,8'S,10S,10'S,13S,13'S,14S,14'S)-bis(17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate)
Catalogue No.:PA 12 0561007
CAS :
NA
Molecular Formula : C47H56O12
Molecular Weight : 812.95


Methylene (8S,8'S,10R,10'R,13S,13'S,14S,14'S)-bis(17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate)
Methylene (8S,8'S,10R,10'R,13S,13'S,14S,14'S)-bis(17-((ethoxycarbonyl)oxy)-10,13-dimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate)
Catalogue No.:PA 12 0561008
CAS :
NA
Molecular Formula : C47H56O14
Molecular Weight : 844.95


Chloromethyl (10S,11S,13S,17R)-17-((ethoxycarbonyl)oxy)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,10,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
Chloromethyl (10S,11S,13S,17R)-17-((ethoxycarbonyl)oxy)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,10,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
Catalogue No.:PA 12 0561009
CAS :
NA
Molecular Formula : C24H29ClO7
Molecular Weight : 464.94