Zilpaterol Hydrochloride

Zilpaterol Hydrochloride Chemical formula
Synonyms: Hidrocloruro de zilpaterol; RU-42173 (base or hydrochloride); Zilpatérol, Chlorhydrate de; Zilpateroli Hydrochloridum. (±)trans-4,5,6,7-Tetrahydro-7-hydroxy-6-(isopropylamino)imidazo[4,5,1jk][1]benzazepin-2(1H)-one hydrochloride.
Cyrillic synonym: Зилпатерола Гидрохлорид.

Chemical information

Chemical formula: C14H19N3O2,HCl = 297.8.
CAS — 117827-79-9 (zilpaterol); 119520-05-7 (zilpaterol); 119520-06-8 (zilpaterol hydrochloride);.


Zilpaterol hydrochloride is a beta2-agonist. It is employed in the USA and some other countries as an animal-feed additive to promote weight gain but such use is not permitted in the EU. It has anabolic properties and may be subject to abuse in sport.
Published May 08, 2019.