Triamcinolone EP Impurity A

Chemical Name: 9-fluoro-11β,17-dihydroxy-3,20-dioxopregna-1,4-diene-16α,21-diyl diacetate (as per EP); 9-Fluoro-11β,16α,17,21-tetrahydroxypregna-1,4-diene-3,20-dione 16,21-diacetate (as per USP)

Smile: F[C@@]1([C@]2(C=C3)C)[C@](CCC2=CC3=O)([H])[C@@](C[C@](OC(C)=O)([H])[C@]4(O)C(COC(C)=O)=O)([H])[C@]4(C)C[C@]1([H])O