Cefoxitin EP Impurity E CAS 2395025-32-6
| CAS No. | 2395025-32-6 |
| Molecular Formula | C17H19N3O8S2 |
| Molecular Weight | 457.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 457.48 g/mol gives Cefoxitin EP Impurity E distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Cefoxitin EP Impurity E (CAS 2395025-32-6) is a certified pharmaceutical impurity reference standard with the molecular formula C17H19N3O8S2 and a molecular weight of 457.48 g/mol.
The molecular framework of Cefoxitin EP Impurity E (C17H19N3O8S2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Cefoxitin EP Impurity E 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 | C17H19N3O8S2 |
| Molecular Weight | 457.48 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefoxitin Standards
- Cefoxitin EP Impurity F (CAS 2395025-37-1)
- Cefoxitin Impurity 22 (CAS CATO-C4X-157822)
- Cefoxitin Impurity 23 (CAS CATO-C4X-157823)
- Cefoxitin Impurity 8 (CAS CATO-C4X-15788)
- Cefoxitin Impurity 45 (CAS CATO-C4X-157845)
- Cefoxitin Impurity 20 (CAS 34279-51-1)
- Cefoxitin Impurity 14 (CAS CATO-C4X-157814)
- Cefoxitin Impurity 53 (CAS CATO-C4X-157853)
Recommended Standards
- Apixaban Impurity 27 (CAS 1074549-89-5)
- Mitoxantrone Impurity 22 (CAS CATO-C4X-103422)
- Mitoxantrone Impurity 19 (CAS CATO-C4X-103419)
- Minocycline Impurity (CAS 27179-27-7)
- Carbidopa EP Impurity B (CAS 18181-08-3)
- Calcipotriol Impurity 23 (CAS 1630745-25-3)
- pregabalin Impurity 37 (CAS CATO-C4X-131237)
- Spilanthic Acid (CAS 94450-21-2)
- 2-(4-Bromobenzoyl)malononitrile (CAS 1498812-40-0)
- 3-Hydroxy-2,4-dimethoxybenzaldehyde (CAS 32246-34-7)
- 3-(2-Chloro-6-fluorophenyl)-5-methyl-4-[4-(3-nitrophenyl)-1,3-thiazol-2-yl]-1,2-oxazole (CAS 287176-94-7)
- 2-(2-Methoxy-5-methylphenyl)propan-2-amine (CAS 1082355-28-9)
- 1-Ethoxy-N,N,N-trimethyl-1-oxohexadecan-2-aminium bromide (CAS 10567-02-9)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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