 | C4X-190719 | N/A | Impurity | |
| Nicorandil Impurity 19 |
 | 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-190723 | N/A | Impurity | |
| Nicorandil Impurity 23 HCl |
| C4X-190724 | 149415-43-0 | Impurity | |
| Nicorandil Impurity 24 |
| C4X-190725 | N/A | Impurity | |
| Nicorandil Impurity 25 1/2Formate 1/2Nitrate |
| C4X-190726 | 14906-63-9 | Impurity | |
| Nicorandil Impurity 26 |
| C4X-190728 | N/A | Impurity | |
| Nicorandil Impurity 28 |
