FXF02B: Fexofenadine EP Impurity B

Fexofenadine USP RC B ;

meta-Fexofenadine ;

2-[3-[(1RS)-1-Hydroxy-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butyl]phenyl]-2-methylpropanoic acid ;

CAS # 479035-75-1 (base) ;

C32H39NO4 (base) ; Mol. Wt.: 501.66 ;