四亚甲基双(三苯基溴化磷鎓), Tetramethylenebis(triphenylphosphonium bromide)

N,N,N',N'-四甲基对苯二胺, N,N,N',N'-Tetramethyl-p-phenylenediamine

2,4,6,8-四甲基-2,4,6,8-四乙烯基环四硅氧烷, 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

四苯基氨化膦, Tetraphenylphosphine imide

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

氟化铊(I), Thallium(I) fluoride

噻唑, Thiazole

4-(2-噻唑基)苯酚, 4-(2-Thiazolyl)phenol

5-(2-噻吩基)戊酸, 5-(2-Thienyl)pentanoic acid

硫代羟基乙酸, Thiodiglycolic acid