四甲基高氯酸铵, Tetramethylammonium perchlorate

2,2',5,5'-四甲基联苯, 2,2',5,5'-Tetramethylbiphenyl

1,1,2,2-四甲氧基环丙烷, 1,1,2,2-Tetramethylcyclopropane

(2,2,6,6-四甲基-3,5-庚二酮)锂, (2,2,6,6-Tetramethyl-3,5-heptanedionato)lithium

2,2,4,4-四甲基戊烷, 2,2,4,4-Tetramethylpentane

N,N,N',N'-四甲基-1,3-丙二胺, N,N,N',N'-Tetramethyl-1,3-propanediamine

N,N,N',N'-四甲基硫脲, N,N,N',N'-Tetramethylthiourea

四苯基环戊二烯酮, Tetraphenylcyclopentadienone

内消旋-四苯基扑吩, meso-Tetraphenylporphine

四正丙基过钌(VII)酸铵, Tetra-n-propylammonium perruthenate(VII)

3-(1H-四唑-5-基)苯甲酸, 3-(1H-Tetrazol-5-yl)benzoic acid

硒化铊(I), Thallium(I) selenide

噻蒽-1-硼酸, Thianthrene-1-boronic acid

L-噻唑烷-4-羧酸, L-Thiazolidine-4-carboxylic acid

4H-噻吩并[3,2-b]吡咯-5-甲酸, 4H-Thieno[3,2-b]pyrrole-5-carboxylic acid