 | C4X-100152 | N/A | Impurity | |
| Erythromycin ethylsuccinate Impurity 52 |
 | C4X-10016 | 41451-91-6 | Impurity | |
| Erythromycin EP Impurity C |
 | C4X-10017 | 82230-93-1 | Impurity | |
| Erythromycin EP Impurity A |
 | C4X-10021 | 118058-74-5 | Impurity | |
| Clarithromycin EP Impurity I |
 | C4X-100210 | 81103-14-2 | Impurity | |
| Clarithromycin EP Impurity E |
 | C4X-100211 | 128940-83-0 | Impurity | |
| Clarithromycin EP Impurity F |
 | C4X-100212 | 127140-69-6 | Impurity | |
| Clarithromycin EP Impurity H |
 | C4X-100213 | 124412-58-4 | Impurity | |
| Clarithromycin EP Impurity A |
| C4X-100214 | 138109-92-9 | Impurity | |
| Clarithromycin impurity 14 |
 | C4X-100215 | 123967-58-8 | Impurity | |
| Clarithromycin EP Impurity P |
