| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-156321 | 412308-26-0?free base? | Impurity | |
| Biotin Impurity 21 HBr | ||||
 | C4X-15633 | 1163708-46-0 | Impurity | |
| Biotin EP Impurity A | ||||
| C4X-15634 | 76335-62-1 | Impurity | |
| Biotin Impurity 4 | ||||
 | C4X-15635 | 57229-92-2 | Impurity | |
| Biotin Impurity 5 | ||||
| C4X-15637 | 21788-37-4 | Impurity | |
| Biotin Impurity 7 | ||||
 | C4X-15638 | 22342-46-7 | Impurity | |
| Biotin Impurity 8 | ||||
| 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 | ||||
