Citalopram (1-(3-(Dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-carbonitrile)
Citalopram EP Impurity B (1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-3-hydroxy-1,3-dihydroisobenzofuran-5-carbonitrile)
Citalopram EP Impurity D ((1RS)-1-(4-Fluorophenyl)-1-[3-(methylamino)propyl]-1,3-dihydro-2-benzofuran-5-carbonitrile)
Citalopram EP Impurity G 4-(Dimethylamino)-1-[(1RS)-1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran-5-yl]butan-1-one (as per EP) ; Citalopram ketone (USP) ; 5-Dimethylamino butyryl citalopram (USP)