Fexofenadine N-oxide

Fexofenadine N-oxide; 1-(4-(4-(2-Carboxypropan-2-yl)phenyl)-4-hydroxybutyl)-4-(hydroxydiphenylmethyl)piperidine 1-Oxide; 4-[1-Hydroxy-4-[4-(hydroxydiphenylmethyl)-1-oxido-1-piperidinyl]butyl]-α,α-dimethylbenzeneacetic acid