51-92-3 64-20-0 Ammonium, tetramethyl-, bromide EINECS 200-581-2 Methanaminium, N,N,N-trimethyl-, bromide Methyl, (dimethylamino)-, methobromide (7CI) N,N,N-Trimethylmethanaminium bromide NSC 148344 Tetramethylammonium bromide