 | C4X-191971 | NA | Stable isotopes | |
| 6-alpha-Methyl Prednisolone Aceponate-13C-d3 |
| C4X-192013 | NA | Stable isotopes | |
| Goserelin-D10 |
| C4X-192014 | NA | Stable isotopes | |
| Goserelin-d7 Tris-Trifluoroacetate |
| C4X-19213 | NA | Stable isotopes | |
| Sodium Prasterone Sulfate-13C3 |
 | C4X-192334 | 756771-02-5 | Stable isotopes | |
| Tetracaine-d6 |
| C4X-19295 | NA | Stable isotopes | |
| Mexiletine-d3 HCl |
| C4X-193110 | NA | Stable isotopes | |
| Doxycycline-d3 |
| C4X-193111 | NA | Stable isotopes | |
| Doxycycline-13C-d3 |
| C4X-193116 | 2747918-45-0 (free base) | Stable isotopes | |
| Doxycycline-d3 HCl |
| C4X-193213 | 127299-95-0 | Stable isotopes | |
| Digoxin-d3 |
