Piracetam Impurity 17 CAS 64026-51-3
| CAS No. | 64026-51-3 |
| Molecular Formula | C6H11ClN2O2 |
| Molecular Weight | 178.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Piracetam Impurity 17 (C6H11ClN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 178.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a process- or degradation-related impurity, Piracetam Impurity 17 (CAS 64026-51-3, C6H11ClN2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H11ClN2O2 |
| Molecular Weight | 178.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Piracetam Standards
- Piracetam Impurity 23 (CAS CATO-C4X-123523)
- Piracetam Impurity 18 (CAS CATO-C4X-123518)
- Piracetam Impurity N5 (CAS 2454698-45-2)
- Piracetam Impurity 44 (CAS CATO-C4X-123544)
- Piracetam EP Impurity C (CAS 61516-73-2)
- Piracetam impurity 41 (CAS 87148-72-9)
- Piracetam Impurity 43 (CAS CATO-C4X-123543)
- Piracetam impurity 31 (CAS CATO-C4X-123531)
Recommended Standards
- 2-Amino-4-carboxy-6-chloropyridine 2-amino-6-chloropyridine-4-carboxylic acid 6313-55-9 (CAS 6313-55-9)
- (2-Methoxycarbonylphenyl)boronic acid 2-Carbomethoxybenzeneboronic acid 374554-54-8 5-Amino-1-chloroisoquinoline (CAS 374554-54-8)
- Emedastine Impurity 41 (CAS CATO-C4X-226741)
- N-[2-(acetylamino)ethyl]-2-chloroacetamide (CAS 86240-79-1)
- Lacosamide EP Impurity B (R-Isomer) (CAS 1318777-54-6)
- Ketorolac impurity 61 (CAS CATO-C4X-166961)
- Osimertinib Impurity 89 (CAS CATO-C4X-204589)
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