Cefepime Impurity 39 CAS CATO-C4X-119339
| CAS No. | CATO-C4X-119339 |
| Molecular Formula | C38H47N12O9S4 |
| Molecular Weight | 944.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cefepime Impurity 39 (CAS CATO-C4X-119339, C38H47N12O9S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C38H47N12O9S4, Cefepime Impurity 39 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 944.11 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.
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 | C38H47N12O9S4 |
| Molecular Weight | 944.11 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) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 12 |
| Sulfur Atoms | 4 |
Related Cefepime Standards
- Cefepime Impurity 27 (CAS CATO-C4X-119327)
- Cefepime Impurity 36 (CAS CATO-C4X-119336)
- Cefepime Dimer (CAS CATO-C4X-119321)
- Cefepime Impurity 26 (CAS CATO-C4X-119326)
- Cefepime Impurity 31 (CAS CATO-C4X-119331)
- Cefepime Impurity 38 (CAS CATO-C4X-119338)
- Cefepime EP Impurity F (CAS CATO-C4X-11936)
- Cefepime Impurity 41 (CAS CATO-C4X-119341)
Recommended Standards
- Ceftolozane Impurity 27 (CAS CATO-C4X-240627)
- 4,4'-((2,2-Bis((4-iodophenoxy)methyl)propane-1,3-diyl)bis(oxy))bis(iodobenzene) (CAS 678187-25-2)
- Ceftolozane Impurity 24 (CAS CATO-C4X-240624)
- 9'-(4-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenyl)-3,3'',6,6''-tetraphenyl-9'H-9,3':6',9''-tercarbazole (CAS 1620808-43-6)
- Sofosbuvir Impurity 112 (CAS 62062-65-1)
- 7-ADCA Impurity 4 (CAS 27255-72-7)
- Tenofovir disoproxil Impurity 122 (CAS 1217630-57-3)
- 2-(4-Ethoxyphenyl)pyrrolidine (CAS 383127-28-4)
- Resmetirom impurity 124 (CAS CATO-C4X-2912124)
- Rac-(1r,9ar)-octahydro-1h-quinolizine-1-carboxylic acid (CAS 1291023-76-1)
- Sulfide In Water (CAS CATO-CCRM106091)
- 4-Fluoro-N'-(4-phenylthiazol-2-yl)benzohydrazide (CAS 685108-41-2)
- 6-Methyl-4H-furo[3,2-c]pyran-4-one (CAS 57053-19-7)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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