بروبيونات كلوبيتاسول لمعايرة تحديد الذروة (مادة مرجعية قياسية)

Clobetasol propionate - Clobederm; Clobesol; Clobetasol 17-Propionate; 21-Chloro-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-17-yl propanoate; (8S,9R,10S,11S,13S,14S,16S,17R)-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; 

Clobetasol propionate EP Impurity A - 9-Fluoro-11β,21-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-17-yl propanoate ; (11β,16β)-9-Fluoro-11,21-dihydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Betamethasone 17α-Propionate; (8S,9R,10S,11S,13S,14S,16S,17R)-9-Fluoro-11-hydroxy-17-(2-hydroxyacetyl)-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;

Clobetasol propionate EP Impurity B - 21-chloro-9-fluoro-11β-hydroxy-16-methylpregna-1,4,16- triene-3,20-dione; (8S,9R,10S,11S,13S,14S)-17-(2-Chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one;

Clobetasol propionate EP Impurity D -  21-Chloro-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregn-4-en-17-yl propanoate; (8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-Chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl Propionate;

Clobetasol propionate EP Impurity E - 21-Chloro-16β-methyl-3,20-dioxopregna-1,4-dien-17-yl propanoate; (8R,9S,10R,13S,14S,16S,17R)-17-(2-Chloroacetyl)-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;