Cefuroxime Impurity 31 CAS CATO-C4X-124531
| CAS No. | CATO-C4X-124531 |
| Molecular Formula | C15H14N3O7S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 403.34 g/mol gives Cefuroxime Impurity 31 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefuroxime Impurity 31 (CAS CATO-C4X-124531, C15H14N3O7SNa) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H14N3O7SNa, Cefuroxime Impurity 31 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 403.34 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 | C15H14N3O7S Na |
| Molecular Weight | 403.34 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefuroxime Standards
- Cefuroxime Open-ring Impurity 44 (CAS 1177709-12-4)
- Di(cefuroxime Ethyl) Ether (CAS 1202925-10-7)
- Cefuroxime Axetil EP Impurity A (CAS 123458-61-7)
- Cefuroxime Axetil Impurity 5 (CAS 136235-54-6)
- Cefuroxime Impurity 33 (CAS 1467-70-5)
- Cefuroxime Impurity 36 (CAS 15690-38-7)
- Cefuroxime-d3 (CAS 1803240-98-3)
- Cefuroxime Impurity 51 (CAS 213912-35-7)
Recommended Standards
- Posaconazole impurity 252 (CAS CATO-C4X-1208252)
- Rosuvastatin Impurity 37 (CAS 1197348-98-3)
- Rimegepant Impurity 113 (CAS 1452167-10-0)
- 6-(tetrahydropyran-4-yloxy)pyridine-2-carbaldehyde (CAS 898289-54-8)
- 6-Bromo-4-chlorothieno[3,2-d]pyrimidine hydrochloride (CAS 1955523-52-0)
- 2-(3,4-Dichlorophenyl)-2-methylpropanal (CAS 1226208-96-3)
- 2-(Morpholinosulfonyl)benzaldehyde (CAS 862500-24-1)
- (3-Methylbenzyl)triphenylphosphonium chloride (CAS 63368-37-6)
- 2-(Trifluoromethyl)quinolin-6-amine (CAS 952182-53-5)
- Anti-TF Antigen Peptide P30-1 trifluoroacetate salt (CAS 573664-50-3)
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