 | C4X-123214 | N/A | Impurity | |
| Emtricitabine cis-Cyclic Impurity |
| C4X-123215 | N/A | Impurity | |
| Emtricitabine Dimer Impurity |
| C4X-123218 | N/A | Impurity | |
| Emtricitabine Tenofovir Disoproxil Dimer |
| C4X-123219 | N/A | Impurity | |
| Emtricitabine Tenofovir Monosoproxil Dimer |
 | C4X-12322 | 152128-77-3 | Impurity | |
| Emtricitabine S-oxide(Mixture) |
 | C4X-123221 | 145986-11-4 | Impurity | |
| Emtricitabine Impurity 21 |
| C4X-123222 | N/A | Impurity | |
| Emtricitabine Impurity 22 |
| C4X-123223 | N/A | Impurity | |
| Emtricitabine Impurity 23 |
| C4X-123224 | N/A | Impurity | |
| Emtricitabine Impurity 24 |
| C4X-123228 | N/A | Impurity | |
| Emtricitabine Impurity 28 |
