Cefaclor Impurity 36 CAS CATO-C4X-127036
| CAS No. | CATO-C4X-127036 |
| Molecular Formula | C22H19Cl2N5O6S2 |
| Molecular Weight | 584.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefaclor Impurity 36 (CAS CATO-C4X-127036), a pharmacopoeial impurity reference standard (molecular formula C22H19Cl2N5O6S2, MW 584.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Cefaclor Impurity 36 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 584.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Cefaclor Impurity 36 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.
Physical & Chemical Properties
| Molecular Formula | C22H19Cl2N5O6S2 |
| Molecular Weight | 584.45 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefaclor Standards
- Cefaclor Impurity 17 (CAS CATO-C4X-127017)
- Cefaclor Impurity 35 (CAS CATO-C4X-127035)
- Cefaclor EP Impurity H (CAS CATO-C4X-12708)
- Cefaclor Impurity 61 (CAS CATO-C4X-127061)
- Cefaclor Impurity 70 (CAS CATO-C4X-127070)
- Cefaclor Impurity 24 (CAS 142975-51-7)
- Cefaclor Impurity 56 (CAS CATO-C4X-127056)
- Cefaclor Impurity 69 (CAS CATO-C4X-127069)
Recommended Standards
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- Telmisartan Impurity 25 (CAS CATO-C4X-135925)
- Pantoprazole EP Impurity F (CAS 721924-06-7)
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- Trihexanoin (CAS 621-70-5)
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- HDAC3-IN-T247 (CAS 1451042-18-4)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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