Cefdinir Impurity 69 CAS CATO-C4X-121069
| CAS No. | CATO-C4X-121069 |
| Molecular Formula | C20H23N5O10S2 |
| Molecular Weight | 557.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cefdinir Impurity 69 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 Cefdinir Impurity 69 (CAS CATO-C4X-121069), a pharmacopoeial impurity reference standard (molecular formula C20H23N5O10S2, MW 557.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefdinir Impurity 69 (C20H23N5O10S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C20H23N5O10S2 |
| Molecular Weight | 557.55 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefdinir Standards
- Cefdinir Impurity 67 (CAS CATO-C4X-121067)
- Cefdinir Impurity 68 (CAS CATO-C4X-121068)
- Cefdinir Impurity 88 (CAS CATO-C4X-121088)
- Cefdinir Impurity 84 (CAS CATO-C4X-121084)
- Cefdinir Impurity 77 (CAS 101156-40-5)
- Cefdinir Impurity 91 (CAS 206855-74-5)
- Cefdinir Impurity 35 (CAS CATO-C4X-121035)
- Cefdinir Impurity 79 (CAS 116856-25-8)
Recommended Standards
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Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com