Cefditoren Impurity 51 CAS CATO-C4X-135851
| CAS No. | CATO-C4X-135851 |
| Molecular Formula | C19H17N6NaO5S3 |
| Molecular Weight | 528.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Cefditoren Impurity 51 (CAS CATO-C4X-135851) is a certified pharmaceutical impurity reference standard with the molecular formula C19H17N6NaO5S3 and a molecular weight of 528.56 g/mol.
Cefditoren Impurity 51 (C19H17N6NaO5S3) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C19H17N6NaO5S3 |
| Molecular Weight | 528.56 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 |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 3 |
Related Cefditoren Standards
- Cefditoren Impurity 62 (CAS CATO-C4X-135862)
- Cefditoren Impurity 31 (CAS CATO-C4X-135831)
- Cefditoren Impurity 58 (CAS CATO-C4X-135858)
- Cefditoren-d3 (CAS 2747915-67-7)
- Cefditoren (CAS 104145-95-1)
- Cefditoren Impurity 18 (CAS CATO-C4X-135818)
- Cefditoren Impurity 3 (CAS 145904-68-3)
- Cefditoren Impurity 32 (CAS CATO-C4X-135832)
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