| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-204213 | 4939-59-7 | Impurity | |
| Neostigmine Impurity 13 | ||||
 | C4X-204217 | 51581-32-9 | Impurity | |
| Neostigmine Impurity 17 | ||||
 | C4X-204219 | 99-07-0 | Impurity | |
| Neostigmine EP Impurity B | ||||
 | C4X-20422 | N/A | Impurity | |
| Neostigmine Impurity 2 | ||||
| C4X-204221 | 3958-86-9 | Impurity | |
| Neostigmine Impurity 21 | ||||
| C4X-204222 | 2783-57-5 | Impurity | |
| Neostigmine Impurity 22 | ||||
| C4X-204223 | 463-72-9 | Impurity | |
| Neostigmine Impurity 23 | ||||
 | C4X-204224 | 15799-79-8 | Impurity | |
| Neostigmine Impurity 24 | ||||
| C4X-204225 | 76418-45-6 | Impurity | |
| Neostigmine Impurity 25 | ||||
| C4X-204226 | 4849-46-1 | Impurity | |
| Neostigmine Impurity 26 | ||||
