Cetirizine methyl ester is an impurity ofCetirizine(HY-17042). Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist^[1].

402.91

C₂₂H₂₇ClN₂O₃

83881-46-3

左西替利杂质8

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.