DRF44H: Darifenacin 4-Hydroxy Impurity (HBr)

(S)-2-(1-(3-(2-Bromoethyl)-4-hydroxyphenethyl)pyrrolidin-3-yl)-2,2-diphenylacetamide hydrobromide ;

CAS # 2468796-90-7 (HBr) ; 2468796-89-4 (Base) ;

C28H31BrN2O2 (Base) ; Mol. Wt.: 507.46 ;

C28H32Br2N2O2 (HBr) ; MW: 588.37 ;