四甲基甲酸铵, Tetramethylammonium formate

1,2,3,4-四甲基苯, 1,2,3,4-Tetramethylbenzene

叔辛基异氰酸酯, 1,1,3,3-Tetramethylbutyl isocyanate

四甲基二硅氮烷, Tetramethyldisilazane

N,N,N',N'-四甲基亚甲二胺, N,N,N',N'-Tetramethylmethylenediamine

N,N,N',N'-四甲基对苯二胺二盐酸盐, N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride

2,2,5,5-四甲基-3-吡咯啉-1-氧基-3-羧酸 N-羟基琥珀酰酯, 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylic acid N-hydroxysuccinimide ester

四正辛基溴化铵, Tetra-n-octylammonium Bromide

四苯基氨化膦, Tetraphenylphosphine imide

四正丙基氯化铵, Tetra-n-propylammonium chloride