CAS Registry Number

CAS 83881-52-1 — Cetirizine dihydrochloride

Cetirizine dihydrochloride is a second-generation antihistamine used to treat allergic conditions such as hay fever, urticaria, and allergic dermatitis. It works by blocking histamine H1 receptors, reducing symptoms like itching, sneezing, and runny nose. Available in powder form, it is stable at ambient temperatures. CAS: 83881-52-1, Molecular Formula: C21H25ClN2O3 · 2HCl, Molecular Weight: 461.81 g/mol. Signal word: Warning. Molekula supplies Cetirizine dihydrochloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Cetirizine dihydrochloride - USP CRS