 | C4X-159142 | N/A | Impurity | |
| Parecoxib Sodium Impurity 42 |
 | C4X-159143 | 1373038-59-5 | Impurity | |
| Parecoxib Sodium Impurity 43 |
| C4X-159144 | 2338845-31-9 | Impurity | |
| Parecoxib Impurity 44 |
| C4X-159145 | 75115-00-3 | Impurity | |
| Parecoxib sodium Impurity 45 |
 | C4X-159146 | 477594-28-8 | Impurity | |
| Parecoxib Sodium Impurity 46 |
| C4X-159147 | 181695-84-1 | Impurity | |
| Parecoxib Sodium Impurity 47 |
| C4X-159148 | 198470-92-7 | Impurity | |
| Parecoxib Sodium Impurity 48 |
| C4X-15915 | N/A | Impurity | |
| Parecoxib sodium Impurity 5 |
| C4X-159150 | 3026677-40-4 | Impurity | |
| Parecoxib Sodium Impurity 50 |
| C4X-159151 | 2304623-35-4 | Impurity | |
| Parecoxib Sodium Impurity 51 |
