Cephalosporin Impurity 6 CAS CATO-C4X-24186
| CAS No. | CATO-C4X-24186 |
| Molecular Formula | C16H17N2O5S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cephalosporin Impurity 6 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 Cephalosporin Impurity 6 (CAS CATO-C4X-24186), a pharmacopoeial impurity reference standard (molecular formula C16H17N2O5SK, MW 388.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C16H17N2O5SK, Cephalosporin 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 388.48 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).
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 | C16H17N2O5S K |
| Molecular Weight | 388.48 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cephalosporin Standards
- Cephalosporin Impurity 2 (CAS 1269661-23-5)
- Cephalosporin Impurity 3 (CAS 1269661-24-6)
- Cephalosporin Impurity 11 (Cefovecin) (CAS 234096-34-5)
- Cephalosporin C Sodium Salt (CAS 51762-04-0)
- Cephalosporin C Zinc Salt (CAS 59143-60-1)
- Cephalosporin C (CAS 61-24-5)
- Cephalosporin Impurity 4 (CAS CATO-C4X-24184)
Recommended Standards
- Flomoxef Impurity 9 Sodium Sal (CAS 2095697-77-9 (free acid))
- Betahistine EP Impurity C (CAS 2095467-43-7)
- Efinaconazole Impurity 34 (CAS 135270-08-5)
- 2-Cyano-4-fluorobenzoic Acid (CAS 1214369-42-2)
- Plerixafor Impurity N1 (CAS 104395-69-9)
- 4-(Tert-butyl)-2-chloro-6-nitroaniline (CAS 335013-56-4)
- 2-(2-(Ethoxysulfonyl)-5-methylphenoxy)ethyl acetate (CAS 26923-87-5)
- 2,4-Dihydroxy-3-methylbenzaldehyde (CAS 6248-20-0)
- Metaraminol Impurity 19 (CAS CATO-C4X-225219)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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