 | C4X-16788 | 2055-97-2 | Impurity | |
| Levothyroxine EP Impurity H |
 | C4X-16789 | 2016-06-0 | Impurity | |
| Levothyroxine EP Impurity I |
 | C4X-16791 | 87-62-7 | Impurity | |
| Lidocaine EP Impurity A |
 | C4X-167910 | 1012864-23-1 | Impurity | |
| Lidocaine EP Impurity J HCl |
 | C4X-167911 | 50295-20-0 | Impurity | |
| Lidocaine EP Impurity K Hydrochloride |
 | C4X-167913 | 79-04-9 | Impurity | |
| Lidocaine Impurity 13 |
 | C4X-167914 | 2315-36-8 | Impurity | |
| Lidocaine Impurity 14 |
 | C4X-167915 | 7728-40-7 | Impurity | |
| Lidocaine EP Impurity D |
 | C4X-167916 | 87-59-2 | Impurity | |
| Lidocaine Impurity 16 |
| C4X-167919 | 108-69-0 | Impurity | |
| Lidocaine Impurity 19 |
