Cefepime Dihydrochloride Monohydrate EP Impurity C CAS CATO-C4X-135863
| CAS No. | CATO-C4X-135863 |
| Molecular Formula | C8H10N4O3S |
| Molecular Weight | 242.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefepime Dihydrochloride Monohydrate EP Impurity C.
CATO supplies Cefepime Dihydrochloride Monohydrate EP Impurity C (CAS CATO-C4X-135863), a pharmacopoeial impurity reference standard (molecular formula C8H10N4O3S, MW 242.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C8H10N4O3S, Cefepime Dihydrochloride Monohydrate EP Impurity C contains a nitrogen-containing heterocyclic scaffold, 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 242.25 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).
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 | C8H10N4O3S |
| Molecular Weight | 242.25 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefepime Standards
- Cefepime Impurity C08 (CAS 51813-38-8)
- Cefepime EP Impurity D (CAS 65872-41-5)
- Cefepime Dihydrochloride Monohydrate EP Impurity E (CAS 103296-32-8)
- Cefepime Impurity 5 (CAS 84994-24-1)
- Cefepime Impurity 29 (CAS 110-56-5)
- Cefepime Impurity 1 (CAS 120-94-5)
- Cefepime Impurity 19 (CAS CATO-C4X-119319)
- Cefepime Impurity 42 (CAS CATO-C4X-119342)
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- Posaconazole Impurity 21(R,R,S,R) (CAS 171228-50-5)
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