 | C4X-156416 | 157415-45-7 | Impurity | |
| Bosentan impurity 16 |
| C4X-156417 | N/A | Impurity | |
| Bosentan impurity 17 |
 | C4X-15642 | 174227-14-6 | Impurity | |
| Bosentan Impurity 2 |
 | C4X-15643 | 1097263-60-9 | Impurity | |
| Bosentan USP Related Compound C |
 | C4X-15644 | 150728-13-5 | Impurity | |
| Bosentan Impurity 4 |
 | C4X-15646 | 6292-59-7 | Impurity | |
| Bosentan Impurity 6 |
 | C4X-15648 | 150728-12-4 | Impurity | |
| Bosentan Impurity 8 |
 | C4X-156610 | 842138-74-3 | Impurity | |
| Brimonidine EP Impurity D |
 | C4X-156611 | 151110-15-5 | Impurity | |
| Brimonidine EP Impurity F |
 | C4X-156612 | 1391054-10-6 | Impurity | |
| Brimonidine EP Impurity G Trifluoroacetic acid salt |
