1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofurancarboxylic Acid1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-1,3-dihydro-5-Isobenzofurancarboxylic acidRefChem:423140691-125-5440121-09-5Citalopram carboxylic acid impurityCitalopram carboxylic acidCitalopram EP Impurity M1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-3H-2-benzofuran-5-carboxylic acidEscitalopram EP Impurity M