Cefamandole Impurity 6 CAS CATO-C4X-12216
| CAS No. | CATO-C4X-12216 |
| Molecular Formula | C19H18N6O6S2 |
| Molecular Weight | 490.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H18N6O6S2, Cefamandole Impurity 6 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 490.51 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).
CATO supplies Cefamandole Impurity 6 (CAS CATO-C4X-12216), a pharmacopoeial impurity reference standard (molecular formula C19H18N6O6S2, MW 490.51 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C19H18N6O6S2 |
| Molecular Weight | 490.51 g/mol |
| Purity | 97%+ |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefamandole Standards
- Cefamandole Impurity 12 (CAS CATO-C4X-122112)
- Cefamandole Impurity 23 (CAS CATO-C4X-122123)
- Cefamandole Impurity 24 (CAS CATO-C4X-122124)
- Cefamandole Impurity 11 (CAS CATO-C4X-122111)
- (S)-Cefamandole Impurity 26 (CAS CATO-C4X-122126)
- Cefamandole Open-Ring Impurity (CAS CATO-C4X-122127)
- Cefamandole EP Impurity C (CAS 36922-15-3)
- Cefamandole Oxide Impurity 15 (CAS CATO-C4X-122115)
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