英文别名Pantoprazole Sodium Impurity W; 2-Chloromethyl-3,4-dimethoxypyridine-N-oxide; Pantoprazole Impurity 35; Pantoprazole Impurity 50; 2-(Chloromethyl)-3,4-dimethoxy-pyridine 1-Oxide; Pyridine, 2-(chloromethyl)-3,4-dimethoxy-, 1-oxide; 2-(chloromethyl)-3,4-dimethoxy-1-oxidopyridin-1-ium