Identification and quantification of five impurities in cloperastine hydrochloride.
Liu HY, Cheng QZ, Fu HZ, Zhong ZH, Xia HY, Guo YF, Zheng SS, Yu SS.
Liu HY, et al.
J Pharm Biomed Anal. 2021 Jan 30;193:113731. doi: 10.1016/j.jpba.2020.113731. Epub 2020 Nov 2.
J Pharm Biomed Anal. 2021.
PMID: 33197833
Impurity A was confirmed as 1-[2-(diphenylmethoxy)ethyl]piperidine, which having one less chloro-substituent compared with cloperastine. Impurity B was confirmed as 1-[2-[(2-chlorophenyl)(phenyl)methoxy]ethyl]piperidine, which was the isomer of cloperastine with 2-c …
Impurity A was confirmed as 1-[2-(diphenylmethoxy)ethyl]piperidine, which having one less chloro-substituent compared with cloperastine …