| Product Name | CAS Registry Number |
| Tropolone | 533-75-5 |
| Trospium chloride | 10405-02-4 |
| Troxerutin | 7085-55-4 |
| Troxipide | 30751-05-4 |
| Trypsin | 9002-07-7 |
| Tryptamine | 61-54-1 |
| TSTU | 105832-38-0 |
| Tubeimoside A | 102040-03-9 |
| Tulathromycin A | 217500-96-4 |
| Tulathromycin B | 280755-12-6 |