四(2,2,6,6-四甲基-3,5-庚烷二酮)铪(IV), Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)hafnium(IV)

2-四氢萘酮, 2-Tetralone

四甲基溴化铵, Tetramethylammonium Bromide

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