Desoximetasone Diacetal Impurity

Chemical Name: 2-((8S,9R,10S,11S,13S,14S,16R,17S)-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)-2-oxoacetaldehyde compound with (8S,9R,10S,11S,13S,14S,16R,17S)-17-(2,2-dihydroxyacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one (1:1)

Synonym: 2,4-dicyano-3-(3,4-dihydroxyphenyl)-N1,N1,N5,N5-tetraethylpentanediamide