Custom Synthesis
| CAS Number | Not assigned |
| Formula | Variable (dual lactam structure derived from gabapentin) |
| Molecular Weight | Typically 250–320 g/mol |
| Purity | ≥ 95.0% |
| Storage | Store at 2–8 °C |
This impurity contains two lactam functionalities formed by excessive cyclization during synthesis or degradation.
Used for extended impurity profiling and regulatory impurity qualification.
HPLC retention profiling, LC-MS structural confirmation, NMR.