英文别名(R)-De(carboxyMethoxy) Cetirizine Acetic Acid Hydrochloride; 4-[(R)-(4-Chlorophenyl)phenylMethyl]-1-piperazineacetic Acid Hydrochloride; Cetirizine Impurity-B(EP/BP); Levocetirizine EP Impurity B; Levocetirizine Impurity B; 2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]acetic acid; (R)-2-(4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)acetic acid hydrochloride 
