Fluocinolone Acetonide EP Impurity A 

Chemical Name: Fluocinolone Acetonide-21-carboxylic Acid ; (6α,11β,16α,17α)-6,9-Difluoro-11-hydroxy-16,17-[(1-methylethylidene)bis(oxy)]-3,20-dioxopregna-1,4-dien-21-oic Acid

Synonym: Deoxysotalol

Smile: C[C@@]12[C@@](OC(C)(C)O3)(C(C(O)=O)=O)[C@@]3([H])C[C@@]1([H])[C@@](C[C@H](F)C4=CC5=O)([H])[C@]([C@]4(C=C5)C)(F)[C@@H](O)C2