clobetasol propionate and its Impurities
Clobetasol propionate is used for the treatment of various skin disorders including eczema, herpes labialis,psoriasis, and lichen sclerosus. It is also applied to the skin as a cream, ointment, or shampoo.. Reference standards of Clobetasol Propionate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
(2'R,8S,9R,10S,11S,13S,14S,16S)-5'-Ethyl-9-fluoro-4',11-dihydroxy-10,13,16-trimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,3'(6H)-dione
(2'R,8S,9R,10S,11S,13S,14S,16S)-5'-Ethyl-9-fluoro-4',11-dihydroxy-10,13,16-trimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,3'(6H)-dione
Catalogue No.:PA 03 96530
CAS :
NA
Molecular Formula : C25H31FO5
Molecular Weight : 430.51
(3S,4aS,4bS,10aS,10bR,11S,12aS)-10b-Fluoro-11-hydroxy-3,10a,12a-trimethyl-1,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysene-2-carbaldehyde
(3S,4aS,4bS,10aS,10bR,11S,12aS)-10b-Fluoro-11-hydroxy-3,10a,12a-trimethyl-1,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysene-2-carbaldehyde
Catalogue No.:PA 03 96540
CAS :
NA
Molecular Formula : C22H27FO4
Molecular Weight : 374.45
(3S,4aS,4bS,10aS,10bR,11S,12aS)-10b-Fluoro-11-hydroxy-3,10a,12a-trimethyl-2,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysene-1-carbaldehyde
(3S,4aS,4bS,10aS,10bR,11S,12aS)-10b-Fluoro-11-hydroxy-3,10a,12a-trimethyl-2,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysene-1-carbaldehyde
Catalogue No.:PA 03 96550
CAS :
NA
Molecular Formula : C22H27FO4
Molecular Weight : 374.45
Clobetasol Propionate Related Compound A (9-alpha-fluoro-11-beta-hydroxy-16-beta-methyl-3-oxoandros (1138427)
Clobetasol Propionate Related Compound A (9-alpha-fluoro-11-beta-hydroxy-16-beta-methyl-3-oxoandros (1138427)
Catalogue No.:PA USP1138427
CAS :
NA
Molecular Formula : NA
Molecular Weight : NA
Ethyl (E)-2-((9R,10S,11S,13S,16S)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)acetate
Ethyl (E)-2-((9R,10S,11S,13S,16S)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)acetate
Catalogue No.:PA 03 96570
CAS :
NA
Molecular Formula : C24H31FO4
Molecular Weight : 402.51
bis(2-(tert-Butyl)-6-(3-(tert-butyl)-2-hydroxy-5-methylbenzyl)-4-methylphenyl) Terephthalate
bis(2-(tert-Butyl)-6-(3-(tert-butyl)-2-hydroxy-5-methylbenzyl)-4-methylphenyl) Terephthalate
Catalogue No.:PA 03 0961000
CAS :
57569-40-1
Molecular Formula : C54H66O6
Molecular Weight : 811.12
(10S,13S,16S,17R)-11-((tert-Butyldimethylsilyl)oxy)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
(10S,13S,16S,17R)-11-((tert-Butyldimethylsilyl)oxy)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
Catalogue No.:PAI 03 096001
CAS :
NA
Molecular Formula : C31H46ClFO5Si
Molecular Weight : 581.24
(10S,13S,16S,17R)-3-Acetoxy-6-chloro-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-17-yl propionate
(10S,13S,16S,17R)-3-Acetoxy-6-chloro-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-17-yl propionate
Catalogue No.:PAI 03 096002
CAS :
NA
Molecular Formula : C27H33Cl2FO6
Molecular Weight : 543.45
(8S,9R,10S,11S,13S,14S,16R,17R)-9-Fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(2-((phenylsulfonyl)oxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
(8S,9R,10S,11S,13S,14S,16R,17R)-9-Fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(2-((phenylsulfonyl)oxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
Catalogue No.:PAI 03 096003
CAS :
NA
Molecular Formula : C31H37FO8S
Molecular Weight : 588.69
(10S,13S,16S,17R)-17-(2-Chloroacetyl)-3-ethoxy-9-fluoro-11-hydroxy-10,13,16-trimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-17-yl propionate
(10S,13S,16S,17R)-17-(2-Chloroacetyl)-3-ethoxy-9-fluoro-11-hydroxy-10,13,16-trimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-17-yl propionate
Catalogue No.:PAI 03 096004
CAS :
NA
Molecular Formula : C27H36ClFO5
Molecular Weight : 495.03
(10S,13S,16S,17R)-6-Bromo-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
(10S,13S,16S,17R)-6-Bromo-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
Catalogue No.:PAI 03 096005
CAS :
NA
Molecular Formula : C25H31BrClFO5
Molecular Weight : 545.87
(10S,13S,16S,17R)-17-(2-Chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-17-(propionyloxy)-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-3-yl benzoate
(10S,13S,16S,17R)-17-(2-Chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-17-(propionyloxy)-8,9,10,11,12,13,14,15,16,17-decahydro-7H-cyclopenta[a]phenanthren-3-yl benzoate
Catalogue No.:PAI 03 096006
CAS :
NA
Molecular Formula : C32H36ClFO6
Molecular Weight : 571.08