 | C4X-190715 | 2250142-73-3 | Impurity | |
| Nicorandil Impurity 15 |
| C4X-190716 | 4665-58-1 | Impurity | |
| Nicorandil Impurity 16 Nitrate |
| C4X-190717 | 6265-74-3 | Impurity | |
| Nicorandil Impurity 17 |
 | C4X-19072 | 65141-47-1 | Impurity | |
| Nicorandil EP Impurity A |
| C4X-190720 | N/A | Impurity | |
| Nicorandil Impurity 20 Formate Nitrat |
| C4X-190721 | N/A | Impurity | |
| Nicorandil Impurity 21 1Nitrate 2Formate |
| C4X-190722 | N/A | Impurity | |
| Nicorandil Impurity 22 |
| C4X-190725 | N/A | Impurity | |
| Nicorandil Impurity 25 1/2Formate 1/2Nitrate |
 | C4X-19073 | 88598-33-8 | Impurity | |
| Nicorandil EP Impurity C Nitrate |
| C4X-190732 | N/A | Impurity | |
| Nicorandil Impurity 32 |
