 | C4X-13145 | 1432063-93-8 | Stable isotopes | |
| Retigabine (Ezogabine)-d5 DiHCl |
 | C4X-13147 | 1285886-70-5 | Stable isotopes | |
| Retigabine-d4 Dihydrochloride |
| C4X-131634 | NA | Stable isotopes | |
| rac Fosfomycin-D5 (Major) Benzylamine Salt |
| C4X-132211 | 93909-48-9 | Stable isotopes | |
| Propafenone-d5 HCl |
 | C4X-132212 | 1188265-48-6 | Stable isotopes | |
| 5-Hydroxy Propafenone-d5 HCl |
| C4X-132420 | 1261398-47-3 | Stable isotopes | |
| Mesalazine-13C6 Hydrochloride |
 | C4X-132422 | 1309935-89-4 | Stable isotopes | |
| N-Acetyl Mesalamine-d3 Impurity 1 |
 | C4X-132423 | 93968-79-7 | Stable isotopes | |
| N-Acetyl Mesalazine-d3 Impurity 2 |
 | C4X-13308 | 202282-98-2 | Stable isotopes | |
| Caffeine-13C |
 | C4X-133354 | 1126721-82-1 | Stable isotopes | |
| Sunitinib-d10 |
