API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Hydroxyzine Hydrochloride

EP Impurity A

 (RS)-1-[(4-chlorophenyl)phenylmethyl]piperazine Hydroxyzine Hydrochloride_EP Impurity A
Hydroxyzine Hydrochloride

EP Impurity B

 2-[2-[4-(diphenylmethyl)piperazin-1-yl]ethoxy]ethanol (decloxizine) Hydroxyzine Hydrochloride_EP Impurity B
Hydroxyzine Hydrochloride

Hydroxyzine Related Compound A

 p-Chlorobenzhydrylpiperazine