3-Hydroxy-1-methylpyridinium bromide, dimethylcarbamate (6CI, 7CI); Carbamic acid, dimethyl-, ester with 3-hydroxy-1-methylpyridinium bromide (8CI); Pyridinium, 3-[[(dimethylamino)carbonyl]oxy]-1-methyl-, bromide (9CI); Pyridinium, 3-hydroxy-1-methyl-, bromide, dimethylcarbamate (8CI); 1-Methyl-3-hydroxypyridinium bromide dimethylcarbamate;3-(Dimethylcarbamoyloxy)-1-methylpyridinium bromide,Pyridostigmine EP Standards