Levetiracetam Impurity 25 CAS 263552-76-7
| CAS No. | 263552-76-7 |
| Molecular Formula | C10H12O5 |
| Molecular Weight | 212.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Levetiracetam Impurity 25 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Levetiracetam Impurity 25 (CAS 263552-76-7, C10H12O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Levetiracetam Impurity 25 (C10H12O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Levetiracetam Impurity 25 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H12O5 |
| Molecular Weight | 212.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Levetiracetam Standards
- Levetiracetam Impurity 32 (CAS 93778-15-5)
- Levetiracetam Impurity 22 (CAS CATO-C4X-106722)
- Levetiracetam impurity 6 (CAS CATO-C4X-10676)
- Levetiracetam Impurity 6 (CAS 4385-97-1)
- Levetiracetam Impurity 45 (CAS CATO-C4X-106745)
- Levetiracetam USP Related Compound A (CAS 102767-31-7)
- Levetiracetam impurity 8 (CAS CATO-C4X-10678)
- Levetiracetam Impurity 33 (CAS 2245069-23-0)
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