 | C4X-242719 | NA | Stable isotopes | |
| Piperazine Impurity 19 D9 |
 | C4X-242985 | NA | Stable isotopes | |
| Relugolix-d6 |
 | C4X-243018 | 2012598-62-6 | Stable isotopes | |
| Perampanel-d5 |
 | C4X-243215 | 62-99-7 (unlabelled) | Stable isotopes | |
| 6?-Hydroxytestosterone-D7 |
 | C4X-243217 | 638163-38-9 | Stable isotopes | |
| 6b-Hydroxy Testosterone-d3 |
 | C4X-245830 | 129273-38-7 (Unlabeled) | Stable isotopes | |
| Perospirone-d8 HCl |
 | C4X-24591 | 1173022-56-4 | Stable isotopes | |
| (±)-4?-Hydroxy Mephenytoin-d3 |
 | C4X-246711 | 53251-94-8 (non-labelled) | Stable isotopes | |
| Pinaverium-d4 Bromide (Mixture of Diastereomers) |
 | C4X-24711 | 1173023-19-2 | Stable isotopes | |
| N-Desethyl Amodiaquine-d5 |
 | C4X-24716 | 1216894-33-5 | Stable isotopes | |
| N-Desethyl Amodiaquine-d5 DiHCl |