Cefixime Impurity 52 CAS CATO-C4X-113952
| CAS No. | CATO-C4X-113952 |
| Molecular Formula | C16H13N5O9S2 |
| Molecular Weight | 483.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cefixime Impurity 52 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.
Cefixime Impurity 52 (CAS CATO-C4X-113952) is a certified pharmaceutical impurity reference standard with the molecular formula C16H13N5O9S2 and a molecular weight of 483.43 g/mol.
The molecular framework of Cefixime Impurity 52 (C16H13N5O9S2) 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 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.
As a certified reference material (CRM), Cefixime Impurity 52 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 | C16H13N5O9S2 |
| Molecular Weight | 483.43 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefixime Standards
- Cefixime Impurity 61 (CAS CATO-C4X-113961)
- Cefixime Impurity 53 (CAS CATO-C4X-113953)
- Cefixime Impurity 76 (CAS CATO-C4X-113976)
- Cefixime EP Impurity F (CAS 79368-95-9)
- Cefixime Impurity 50 (CAS 2682217-22-5)
- Cefixime Impurity 88 (CAS CATO-C4X-113988)
- Cefixime Impurity 89 (CAS CATO-C4X-113989)
- Cefixime Impurity 90 (CAS CATO-C4X-113990)
Recommended Standards
- (2R,3R,4S,5R,6R)-2-(4-Acetamido-2-oxopyrimidin-1(2H)-yl)-6-(acetoxymethyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 3180-75-4)
- Epinastine Impurity 21 (CAS CATO-C4X-184021)
- 5-[2,6-Bis(4-carboxyphenyl)-4-pyridinyl]-1,3-Benzenedicarboxylicacid (CAS 1868146-04-6)
- Epinastine Impurity 48 (CAS CATO-C4X-184048)
- Nafcillin Impurity 1 (CAS CATO-C4X-33381)
- Cabergoline EP Impurity B (CAS 166533-36-4)
- Dexpanthenol Impurity 12 (CAS 13031-04-4)
- 4-(2,2,2-Trifluoroethoxy)pyrimidin-5-amine (CAS 1443289-45-9)
- (S)-Diphenyl(1,2,3,4-tetrahydroisoquinolin-3-yl)methanol (CAS 140408-82-8)
- N-(2,4-Difluorophenyl)-4-[4-(4-fluorophenyl)-1,3-thiazol-2-yl]benzamide (CAS 321430-17-5)
- Ketorolac Impurity 29 (CAS CATO-C4X-166929)
- 1-(2-Fluoro-3-phenylbicyclo[1.1.1]pentan-1-yl)ethan-1-one (CAS 2731007-38-6)
- 5-bromo-2-tert-butyl-3-fluoropyridine (CAS 1864133-27-6)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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