Ceftazidime Impurity D CAS CATO-C4X-12124
| CAS No. | CATO-C4X-12124 |
| Molecular Formula | C45H44N6O7S2 |
| Molecular Weight | 845.00 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ceftazidime Impurity D (C45H44N6O7S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Ceftazidime Impurity D (CAS CATO-C4X-12124), a pharmacopoeial impurity reference standard (molecular formula C45H44N6O7S2, MW 845.00 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Ceftazidime Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C45H44N6O7S2 |
| Molecular Weight | 845.00 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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Ceftazidime Standards
- Ceftazidime Impurity 98 (CAS CATO-C4X-121298)
- Ceftazidime Impurity 14 (CAS CATO-C4X-121214)
- Ceftazidime Impurity 55 (CAS CATO-C4X-121255)
- Ceftazidime impurity 124 (CAS CATO-C4X-1212124)
- Ceftazidime Impurity 99 (CAS CATO-C4X-121299)
- Ceftazidime Impurity 101 (CAS CATO-C4X-1212101)
- Ceftazidime Impurity 75 (CAS CATO-C4X-121275)
- Ceftazidime Impurity 31 (CAS CATO-C4X-121231)
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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