prednisolone and its Impurities
A synthetic form of cortecosteroid hormone made by adrenal glands. Prednisolone is helpful in treating inflammation and allergic conditions. It is a glucocorticoid that belongs to the family of steroids.Reference standards of Prednisolone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


2-((10R,11R,13S,16R,17R)-2,4-Dibromo-11,17-dihydroxy-10,13,16-trimethyl-3-oxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
2-((10R,11R,13S,16R,17R)-2,4-Dibromo-11,17-dihydroxy-10,13,16-trimethyl-3-oxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
Catalogue No.:PA 16 44680
CAS :
NA
Molecular Formula : C24H34Br2O6
Molecular Weight : 578.33


Sodium ((2S,4aS,4bS,10aR,10bS,11S,12aS)-2,11-dihydroxy-10a,12a-dimethyl-1,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysen-2-yl)methyl Phosphate
Sodium ((2S,4aS,4bS,10aR,10bS,11S,12aS)-2,11-dihydroxy-10a,12a-dimethyl-1,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysen-2-yl)methyl Phosphate
Catalogue No.:PA 16 95580
CAS :
NA
Molecular Formula : C21H27Na2O8P
Molecular Weight : 484.39


(Z)-2-(10,13-Dimethyl-3-oxo-7,8,12,13,15,16-hexahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)-2-hydroxyacetaldehyde
(Z)-2-(10,13-Dimethyl-3-oxo-7,8,12,13,15,16-hexahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)-2-hydroxyacetaldehyde
Catalogue No.:PAI 16 011010
CAS :
NA
Molecular Formula : C21H24O3
Molecular Weight : 324.41


2-(10,13-Dimethyl-3-oxo-6,7,8,10,12,13,14,15-octahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
2-(10,13-Dimethyl-3-oxo-6,7,8,10,12,13,14,15-octahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
Catalogue No.:PAI 16 011020
CAS :
NA
Molecular Formula : C23H26O4
Molecular Weight : 366.45


2-Hydroxy-2-((8S,9S,10R,11S,13S)-11-hydroxy-10,13-dimethyl-3-oxo-7,8,9,11,12,13,15,16-octahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)acetaldehyde
2-Hydroxy-2-((8S,9S,10R,11S,13S)-11-hydroxy-10,13-dimethyl-3-oxo-7,8,9,11,12,13,15,16-octahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)acetaldehyde
Catalogue No.:PAI 16 011030
CAS :
3372-11-0
Molecular Formula : C21H26O4
Molecular Weight : 342.43


(2S,4aS,4bS,10aR,10bS,11S,12aS)-2,11-dihydroxy-2-(hydroxymethyl)-10a,12a-dimethyl-2,3,4,4a,5,6,10b,11,12,12a-decahydrochrysene-1,8(4bH,10aH)-dione
(2S,4aS,4bS,10aR,10bS,11S,12aS)-2,11-dihydroxy-2-(hydroxymethyl)-10a,12a-dimethyl-2,3,4,4a,5,6,10b,11,12,12a-decahydrochrysene-1,8(4bH,10aH)-dione
Catalogue No.:PAI 16 011040
CAS :
NA
Molecular Formula : C21H28O5
Molecular Weight : 360.44


(8S,9S,10R,11S,13S,14S,17R)-17-(1,2-Dihydroxy-2-methoxyethyl)-11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
(8S,9S,10R,11S,13S,14S,17R)-17-(1,2-Dihydroxy-2-methoxyethyl)-11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
Catalogue No.:PAI 16 011050
CAS :
NA
Molecular Formula : C22H32O6
Molecular Weight : 392.49


2-((8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-hydroxyacetic acid
2-((8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-hydroxyacetic acid
Catalogue No.:PAI 16 011060
CAS :
NA
Molecular Formula : C21H28O6
Molecular Weight : 376.45


2-Hydroxy-2-((8S,9S,10R,11S,13S,14S,17S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)acetic Acid
2-Hydroxy-2-((8S,9S,10R,11S,13S,14S,17S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)acetic Acid
Catalogue No.:PA 16 44750
CAS :
75448-52-1
Molecular Formula : C21H28O5
Molecular Weight : 360.45


2-Hydroxy-1-((10S,13S,17R)-17-hydroxy-4'-(hydroxymethyl)-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-yl)ethanone
2-Hydroxy-1-((10S,13S,17R)-17-hydroxy-4'-(hydroxymethyl)-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-yl)ethanone
Catalogue No.:PA 16 44760
CAS :
NA
Molecular Formula : C24H32O6
Molecular Weight : 416.51


2-Hydroxy-1-((10S,13S,17R)-17-hydroxy-5’-(hydroxymethyl)-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-yl)ethanone
2-Hydroxy-1-((10S,13S,17R)-17-hydroxy-5’-(hydroxymethyl)-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-yl)ethanone
Catalogue No.:PA 16 44770
CAS :
NA
Molecular Formula : C24H32O6
Molecular Weight : 416.51


(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carbaldehyde
(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carbaldehyde
Catalogue No.:PA 16 44780
CAS :
167997-18-4
Molecular Formula : C20H26O4
Molecular Weight : 330.42


2-Hydroxy-1-((8S,10S,13S,14S,17R)-17-hydroxy-4',10,13-trimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-yl)ethan-1-one
2-Hydroxy-1-((8S,10S,13S,14S,17R)-17-hydroxy-4',10,13-trimethyl-6,7,8,10,12,13,14,15,16,17-decahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-yl)ethan-1-one
Catalogue No.:PA 16 44790
CAS :
NA
Molecular Formula : C24H32O5
Molecular Weight : 400.52


2-((6S,8S,10R,13S,14S,17R)-17-hydroxy-6,10,13-trimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
2-((6S,8S,10R,13S,14S,17R)-17-hydroxy-6,10,13-trimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Acetate
Catalogue No.:PA 16 45510
CAS :
93239-37-3
Molecular Formula : C24H30O5
Molecular Weight : 398.5


(E)-2-Hydroxy-2-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)acetaldehyde
(E)-2-Hydroxy-2-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)acetaldehyde
Catalogue No.:PA 16 95600
CAS :
118864-88-3
Molecular Formula : C21H26O4
Molecular Weight : 342.44