| Testosterone isocaproate | 15262-86-9 |
| Testosterone phenylpropionate | 1255-49-8 |
| Testosterone undecanoate | 5949-44-0 |
| Tetomilast | 145739-56-6 |
| Tetrabenzyl Pyrophosphate | 990-91-0 |
| Tetrabutylammonium Ion | 2052-49-5 |
| Tetrachlorodecaoxide | 92047-76-2 |
| Tetradecyl hydrogen sulfate (ester) | 300-52-7 |
| Tetraethylammonium | 66-40-0 |
| Tetrafluoroaluminate Ion | 21340-02-3 |
| Tetrafluoroborate | 14874-70-5 |
| Tetragalacturonic acid hydroxymethylester | 53008-15-4 |
| Tetraglyme | 143-24-8 |
| Tetrahydofuran (THF) | 109-99-9 |
| Tetrahydrocannabivarin | 31262-37-0 |
| Tetrahydrofolic acid | 135-16-0 |
| Tetrahydrogestrinone | 618903-56-3 |
| Tetrahydrooxazine | |
| Tetrahydropalmatine | 483-14-7 |
| Tetrahydropyran | 142-68-7 |
| Tetrahydrouridine | 18771-50-1 |
| Tetraiodothyroacetic acid | 67-30-1 |
| Tetramethrin | 7696-12-0 |
| Tetramethylammonium | 51-92-3 |
| Tetramethylthiuram monosulfide | 97-74-5 |
| Tetrandrine | 518-34-3 |
| Tetrasul | 2227-13-6 |
| Tetrathiomolybdate | 16330-92-0 |
| Tetrazolyl Histidine | |
| Tetrodotoxin | 4368-28-9 |
| Tetrofosmin | 127502-06-1 |
| Tetroxoprim | 53808-87-0 |
| Teverelix | 151272-78-5 |
| Tezacaftor | 1152311-62-0 |
| Tezacitabine | 171176-43-5 |
| Tezampanel | 154652-83-2 |
| Tezepelumab | 1572943-04-4 |
| Tezosentan | 180384-57-0 |
| Thallous chloride Tl-201 | 55172-29-7 |
| Thebacon | |