Cefuroxime Impurity 57 CAS CATO-C4X-124557
| CAS No. | CATO-C4X-124557 |
| Molecular Formula | C16H14N2O8S |
| Molecular Weight | 394.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefuroxime Impurity 57 (CAS CATO-C4X-124557), a pharmacopoeial impurity reference standard (molecular formula C16H14N2O8S, MW 394.36 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Cefuroxime Impurity 57 (C16H14N2O8S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures Cefuroxime Impurity 57 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 | C16H14N2O8S |
| Molecular Weight | 394.36 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefuroxime Standards
- Cefuroxime Impurity 46 (CAS CATO-C4X-124546)
- Cefuroxime impurity 105 (CAS CATO-C4X-1245105)
- Cefuroxime Impurity 27 (CAS CATO-C4X-124527)
- Cefuroxime sodium GSK ring opening impurity (CAS CATO-C4X-124528)
- Cefuroxime Sodium Impurity 29 (CAS CATO-C4X-124529)
- Cefuroxime Impurity 68 (CAS CATO-C4X-124568)
- Cefuroxime Open-ring Impurity 47 (CAS CATO-C4X-124547)
- Cefuroxime Impurity C95 (CAS 27920-90-7)
Recommended Standards
- Sertraline 2-Methylpropane 2-Sulfinamide (CAS 674767-90-9)
- N,N'-Desethylene-N,N'-diformyl Levofloxacin-d3 (CAS 1346598-04-6)
- Perfluorophenyl 2,3,4,5,6-pentamethylbenzenesulfonate (CAS 886361-16-6)
- Gericudranin E (CAS 172104-07-3)
- Parecoxib Impurity 33 (CAS CATO-C4X-159133)
- Levetiracetam impurity 9 (CAS 1868118-63-1)
- Celecoxib Impurity 77 (CAS CATO-C4X-104377)
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- Ethyl 4-chloro-3-cyanoquinoline-6-carboxylate (CAS 872577-51-0)
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- 3-Bromo-5-methoxy-1-methyl-1H-indazole (CAS 1310705-15-7)
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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