| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-122019 | N/A | Impurity | |
| Metformin Impurity 19 | ||||
 | C4X-12202 | 4405-08-7 | Impurity | |
| Metformin EP Impurity B | ||||
| C4X-122020 | N/A | Impurity | |
| Metformin Impurity 20 | ||||
| C4X-122021 | N/A | Impurity | |
| Metformin Impurity 21 | ||||
| C4X-122022 | N/A | Impurity | |
| Metformin Impurity 22 | ||||
| C4X-122023 | 26690-75-5 | Impurity | |
| Metformin Impurity 23 | ||||
 | C4X-122025 | 926-72-7 | Impurity | |
| Metformin Impurity 25 HCl | ||||
 | C4X-122026 | 32161-06-1 | Impurity | |
| Metformin Impurity 26 | ||||
 | C4X-122029 | 36801-25-9 | Impurity | |
| Metformin EP Impurity E Sulfate | ||||
 | C4X-12203 | 1985-46-2 | Impurity | |
| Metformin EP Impurity C | ||||
