Piracetam impurity 42 CAS CATO-C4X-123542
| CAS No. | CATO-C4X-123542 |
| Molecular Formula | C7H12N2O2 |
| Molecular Weight | 156.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Piracetam impurity 42 (CAS CATO-C4X-123542), a pharmacopoeial impurity reference standard (molecular formula C7H12N2O2, MW 156.18 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C7H12N2O2, Piracetam impurity 42 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H12N2O2 |
| Molecular Weight | 156.18 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
Related Piracetam Standards
- Piracetam Impurity 47 (CAS 33996-49-5)
- Piracetam Impurity 9 (CAS CATO-C4X-12359)
- Piracetam Impurity 45 (CAS CATO-C4X-123545)
- Piracetam EP Impurity B (CAS 59776-88-4)
- Piracetam Impurity 49 (CAS CATO-C4X-123549)
- Piracetam impurity 33 (CAS CATO-C4X-123533)
- Piracetam impurity 34 (CAS CATO-C4X-123534)
- Piracetam Impurity 6 (CAS 1096803-44-9)
Recommended Standards
- Ethyl 2-Oxocyclopentanecarboxylate (CAS 611-10-9)
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- Atropine Impurity 59 (CAS 2659259-66-0)
- Tamsulosin Impurity 27 HCl (CAS CATO-C4X-118727)
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