Fexofenadine hydrochloride

Fexofenadine hydrochloride (CAS 153439-40-8) is a selective histamine H1-receptor antagonist supplied as a pharmaceutical-grade active ingredient. Known commercially as Allegra, Telfast, and Fexofen, it carries no assigned E-code and is identified under EC 604-906-2 with HS code 2933399090.

In pharmaceutical formulations, it serves as the primary antihistamine active in oral allergy treatments, blocking peripheral H1 receptors without crossing the blood-brain barrier, which eliminates sedation as a side effect. In personal care applications, it functions as a UV absorber and skin conditioner, helping stabilise formulations against photodegradation while supporting antimicrobial preservation.

Supplied as an off-white crystalline powder conforming to Ph.Eur. and ICH Q7 GMP standards, this material is available in research quantities through to multi-kilogram industrial lots. REACH compliance documentation is available upon request, and packaging is provided under controlled conditions appropriate for active pharmaceutical ingredients.