 | C4X-176437 | NA | Stable isotopes | |
| Tiotropium Bromide EP Impurity G-d3 Bromide |
| C4X-176438 | NA | Stable isotopes | |
| Tiotropium Bromide EP Impurity H-d3 Bromide |
| C4X-176716 | 1246911-91-0 | Stable isotopes | |
| rac-Tolterodine-d14 Tartrate |
| C4X-176717 | 1191280-58-6 | Stable isotopes | |
| 5-Hydroxymethyl Tolterodine-d14 Formate |
 | C4X-17761 | 1174683-49-8 | Stable isotopes | |
| Vandetanib-d6 |
 | C4X-177918 | 113892-08-3 | Stable isotopes | |
| ?-Tocopherol-d6 |
 | C4X-177938 | 1354064-87-1 | Stable isotopes | |
| Ascorbic acid 13C6 |
 | C4X-179422 | 1215821-44-5 | Stable isotopes | |
| Fexofenadine-d10 HCl |
| C4X-179738 | NA | Stable isotopes | |
| Tenofovir Alafenamide-d5 (Diastereomers) |
| C4X-179739 | NA | Stable isotopes | |
| Tenofovir Alafenamide-d6 (Mixture of Diastereomers) |
