Cefadroxil Impurity 28 CAS CATO-C4X-122428
| CAS No. | CATO-C4X-122428 |
| Molecular Formula | C24H24N4O7S |
| Molecular Weight | 512.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cefadroxil Impurity 28 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cefadroxil Impurity 28 (CAS CATO-C4X-122428) is a certified pharmaceutical impurity reference standard with the molecular formula C24H24N4O7S and a molecular weight of 512.53 g/mol.
The molecular framework of Cefadroxil Impurity 28 (C24H24N4O7S) 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).
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.
CATO manufactures Cefadroxil Impurity 28 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 | C24H24N4O7S |
| Molecular Weight | 512.53 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefadroxil Standards
- Cefadroxil Impurity 24(L-isomer) (CAS CATO-C4X-122424)
- Cefadroxil EP Impurity F (D-isomer) (CAS 147103-95-5)
- Cefadroxil Impurity 6(Mixture of Diastereomers) (CAS CATO-C4X-12246)
- Cefadroxil EP Impurity F (Mixture of Diastereomers) (CAS CATO-C4X-12247)
- Cefadroxil Impurity 31 (CAS CATO-C4X-122431)
- Cefadroxil Impurity 32 (CAS CATO-C4X-122432)
- Cefadroxil Impurity 47 (CAS CATO-C4X-122447)
- Cefadroxil Impurity 48 (CAS CATO-C4X-122448)
Recommended Standards
- Cefadoxil USP Impurity I (CAS CATO-C4X-122422)
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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
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