英文别名Fexofenadine Impurity 8; Fexofenadine-N-oxide; Benzeneacetic acid, 4-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-oxido-1-piperidinyl]butyl]-alpha,alpha-dimethyl-; 4-[1-Hydroxy-4-[4-(hydroxydiphenylmethyl)-1-oxido-1-piperidinyl]butyl]-alpha,alpha-dimethylbenzeneacetic acid; 1-(4-(4-(2-carboxypropan-2-yl)phenyl)-4-hydroxybutyl)-4-(hydroxydiphenylmethyl)piperidine 1-oxide; (RS)-1-(4-(4-(2-carboxypropan-2-yl)phenyl)-4-hydroxybutyl)-4-(hydroxydiphenylmethyl)piperidine 1-oxide; Fexofenadine EP Impurity 9; FEXOFENADIE N-OXIDE 
