Fluocinolone Acetonide EP Impurity C

6α,9-difluoro-11β,16α,17,21-tetrahydroxypregna-1,4-diene-3,20-dione ; (6s,8s,9r,10s,11s,13s,14s,16r,17s)-6,9-difluoro-11,16,17-trihydroxy-17-(2-hydroxyethanoyl)-10,13-dimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one ; 6-alpha,9-alpha-difluoro-11-beta,16-alpha,17-alpha,21-tetrahydroxypregna-1,4-diene-3,20-dione ; 6α-fluorotriamcinolone ; (6s,8s,9r,10s,11s,13s,14s,16r,17s)-6,9-difluoro-17-glycoloyl-11,16,17-trihydroxy-10,13-dimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one ; (6s,8s,9r,10s,11s,13s,14s,16r,17s)-6,9-difluoro-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one