S-Cefadroxil Sulfoxide CAS CATO-C4X-122416
| CAS No. | CATO-C4X-122416 |
| Molecular Formula | C16H17N3O6S |
| Molecular Weight | 379.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
S-Cefadroxil Sulfoxide (CAS CATO-C4X-122416) is a certified pharmaceutical impurity reference standard with the molecular formula C16H17N3O6S and a molecular weight of 379.39 g/mol.
The molecular framework of S-Cefadroxil Sulfoxide (C16H17N3O6S) is characterized by a flavonoid core, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), S-Cefadroxil Sulfoxide 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 | C16H17N3O6S |
| Molecular Weight | 379.39 g/mol |
| Purity | >90% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related S Standards
- R-Cefadroxil Sulfoxide (CAS CATO-C4X-122415)
- Cefadroxil Impurity 25 (CAS CATO-C4X-122425)
- Cefadroxil Sulfoxide(RS) (CAS 182290-77-3)
- Cefadroxil Ethyl Homolog (CAS 2243976-70-5)
- Cefadroxil Impurity 38 (CAS CATO-C4X-122438)
- Cefadroxil Impurity 46 (CAS CATO-C4X-122446)
- Cefadroxil Impurity 19 (CAS CATO-C4X-122419)
- Cefadroxil EP Impurity D (CAS 144790-28-3)
Recommended Standards
- JLC76XF39H 54398-03-7 S-Pyruvylglutathione Glycine, N-(S-(1,2-dioxopropyl)-N-L-gamma-glutamyl-L-cysteinyl)- S-Pyruvoylglutathione UNII-JLC76XF39H (CAS 54398-03-7)
- NVP-HSP 990 (CAS 934343-74-5)
- Cefmetazole Impurity 17 (CAS CATO-C4X-150717)
- N5-((2R)-1-((Carboxymethyl)amino)-3-((2-hydroxypropanoyl)thio)-1-oxopropan-2-yl)-L-glutamine (CAS 25138-66-3)
- Enzalutamide Impurity 44 (CAS 24115-24-0)
- Posaconazole Impurity 15(S,S,S,S) (CAS 1246391-73-0)
- Topiroxostat Impurity 49 (CAS 14906-59-3)
- methyl 2-bromo-2-(2-chlorophenyl)acetate (CAS 25270-30-2)
- 1-(1H-pyrazol-1-yl)cyclopropane-1-carboxylic acid (CAS 1548372-66-2)
- (Ethoxycarbonyl)-L-prolinate (CAS 5700-74-3)
- 6-chloro-4-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 1589540-63-5)
- n-(1-Ethyl-1h-pyrazol-4-yl)cyclopentanecarboxamide (CAS 1258740-53-2)
- Olaparib Impurity 89 (Mixture E&Z) (CAS CATO-C4X-113589)
- FLAG Epitope Peptide (CAS 98849-88-8)
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