Pharmaceutical Reference Standards / Impurity Standards

Verapamil Hydrochloride
Verapamil Hydrochloride Impurity B
N-Nitroso Verapamil EP Impurity J
1-Phenyl-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline
Verapamil EP Impurity B Hydrochloride
Nitroso-Desmethyl Verapamil