Impureté de dichlorhydrate de cétirizine - B

(RS)-2-[4-[(4-chlorophenyl)phenylmethyl]piperazin-1-yl]acetic acid; 4-[(4-Chlorophenyl)
phenylmethyl]-1-piperazineacetic acid; Cetirizine acetic acid; 2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]acetic acid (USP);