Brexpiprazole Impurity 1

Chemical Name: 1,4-bis(benzo[b]thiophen-4-yl)piperazine

Synonym: Cetirizine Dihydrochloride Ethyl Ester ; (RS)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid ethyl ester dihydrochloride ;