Citalopram EP Impurity C 

Chemical Name: 3-[3-(Dimethylamino)-1-propyl](4-fluorophenyl)-6-cyano-1(3H)-isobenzofuranone ; 1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-3-oxo-1,3-dihydroisobenzofuran-5-carbonitrile

Synonym: Citalopram USP Related Compound C ; 3-Oxo Citalopram ;