易吸湿，热至230℃以上时分解，并部分升华。在真空中热至360℃升华。易溶于水，微溶于无水醇，不溶于醚。半数致死量（大鼠，腹腔）24.6mg/kg。有刺激性。 中文别称：四甲基溴化胺别;四甲基溴化胺;四甲替溴化铵 ;溴化四甲基铵;溴化四甲烷;溴化四甲铵;四甲胺溴化物;溴化四甲铵 英文别名：Tetra Methyl Ammonium Bromide; (dimethylamino)-methymethobromide; Ammonium, tetramethyl-, bromide; Methanaminium, N,N,N-trimethyl-, bromide; Methanaminium,N,N,N-trimethyl-,bromide; n,n,n-trimethyl-methanaminiubromide; n,n,n-trimethylmethanaminiumbromide; tetramethyl-ammoniubromide; TMAB; Tetramethyl ammonium bromide; N,N,N-trimethylmethanaminium bromide