Cefoxitin Impurity 24 CAS CATO-C4X-157824
| CAS No. | CATO-C4X-157824 |
| Molecular Formula | C17H19N3O7S2 |
| Molecular Weight | 441.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cefoxitin Impurity 24 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Cefoxitin Impurity 24 (CAS CATO-C4X-157824), a pharmacopoeial impurity reference standard (molecular formula C17H19N3O7S2, MW 441.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C17H19N3O7S2, Cefoxitin Impurity 24 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 441.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C17H19N3O7S2 |
| Molecular Weight | 441.48 g/mol |
| Purity | >90% |
| 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 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefoxitin Standards
- Cefoxitin Impurity 25 (CAS CATO-C4X-157825)
- Cefoxitin Impurity 53 (CAS CATO-C4X-157853)
- Cefoxitin Impurity 14 (CAS CATO-C4X-157814)
- Cefoxitin Impurity 20 (CAS 34279-51-1)
- Cefoxitin EP Impurity I (CAS CATO-C4X-157813)
- Cefoxitin EP Impurity B (CAS CATO-C4X-15782)
- Cefoxitin (CAS 35607-66-0)
- Cefoxitin Impurity 29 (CAS CATO-C4X-157829)
Recommended Standards
- Eltrombopag Impurity 4 (CAS 1246929-02-1)
- Cefixime Impurity 73 (CAS CATO-C4X-113973)
- Cefpodoxime Proxetil Impurity 37 (CAS CATO-C4X-157937)
- Azilsartan Impurity 187 (CAS CATO-C4X-1096187)
- Flurbiprofen Impurity 41 (CAS 535-11-5)
- Thioctic Acid Impurity 51 (CAS 56535-97-8)
- Vidarabine Impurity 5 (CAS CATO-C4X-20555)
- 2,5,5-Trimethylhexanoic acid (CAS 53705-45-6)
- (4-Amino-3-(methoxymethoxy)phenyl)diethylphosphine oxide (CAS 2903922-91-6)
- (-)-Alpha-Conidendrin (CAS 518-55-8)
- 3-Nonylisoxazol-5(4H)-one (CAS 398148-14-6)
- (Z)-4-(4-Fluorophenyl)-4-oxobut-2-enoic acid (CAS 35513-38-3)
- 2-((4-Chlorobenzyl)oxy)-4-(((4-chlorophenyl)imino)methyl)-3-hydroxyisoquinolin-1(2H)-one (CAS 338419-49-1)
- Peptide Impurity (CAS CATO-CPTD788810)
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