Hydrocortisone Impurity:(8S,9S,10R,11S,13S,14S,17S)-17-(2,2-Dihydroxyacetyl)-11-hydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one(17-Dehydro-21-hydroxy Hydrocortisone).