
Verapamil USP RC B ;
(2RS)-2-(3,4-Dimethoxyphenyl)-2-[2-[[2-(3,4-dimethoxyphenyl)ethyl] (methyl)amino]ethyl]-3-methylbutanenitrile hydrochloride ;
CAS # 2893-91-6 (Base) ; 1794-55-4 (HCl salt) ;
C26H36N2O4 (base) ; MW: 440.58 ;
C26H37ClN2O4 (HCl) ; Mol. Wt.: 477.04 ;