Piracetam impurity 35 CAS CATO-C4X-123535
| CAS No. | CATO-C4X-123535 |
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Piracetam impurity 35 (C19H17NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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).
As a process- or degradation-related impurity, Piracetam impurity 35 (CAS CATO-C4X-123535, C19H17NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Piracetam impurity 35 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Piracetam Standards
- Piracetam Impurity 29 (CAS CATO-C4X-123529)
- Piracetam impurity 39 (CAS CATO-C4X-123539)
- Piracetam Impurity 28 (CAS CATO-C4X-123528)
- Piracetam Impurity 30 (CAS CATO-C4X-123530)
- Piracetam impurity 38 (CAS CATO-C4X-123538)
- Piracetam impurity 40 (CAS CATO-C4X-123540)
- Piracetam Impurity 27 (CAS CATO-C4X-123527)
- Piracetam Impurity 26 (CAS CATO-C4X-123526)
Recommended Standards
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- Flurbiprofen Impurity 80 (CAS CATO-C4X-144480)
- (E)-Ceftizoxime Impurity 1 (CAS 68403-31-6)
- Mezlocillin Impurity 13 (CAS CATO-C4X-183113)
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- Methylphenidate Hydrochloride - Impurity D (CAS 50288-63-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com