The chemical Citalopram has a designated molecular formula of C20H21FN2O and a molecular weight of 324.399 g/mol. Synonyms may include: Cipram, Citalopramum [INN-Latin], 1,3-Dihydro-1-(3-(dimethylamino)propyl)-1-(4-fluorophenyl)-5-isobenzofurancarbonitrile, 1-(3-(Dimethylamino)propyl)-1-(p-fluorophenyl)-5-phthalancarbonitrile, EINECS 261-891-1, Lu 10-171, Nitalapram, Citalopramum, UNII-0DHU5B8D6V, Perrigo citalopram (ChemID). Citalopram has been assigned a MeSH pharmacological action of: Serotonin Uptake Inhibitor.