What Is Escitalopram? Escitalopram, its English name is escitalopram, its molecular formula is C 20 H 21 FN 2 O, CAS registration number is 128196-01-0, and ATC code is N06AB10. [1] IN OTHER LANGUAGES English Čeština Dansk Deutsch Svenska Français Italiano Nederlands Norsk Polski Português Español 日本語 한국어