Cefadroxil EP Impurity F (D-isomer) CAS 147103-95-5
| CAS No. | 147103-95-5 |
| Molecular Formula | C24H24N4O7S |
| Molecular Weight | 512.53 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.
As a process- or degradation-related impurity, Cefadroxil EP Impurity F (D-isomer) (CAS 147103-95-5, C24H24N4O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Cefadroxil EP Impurity F (D-isomer) (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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Cefadroxil EP Impurity F (D-isomer) 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 | 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 |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefadroxil Standards
- Cefadroxil Impurity 24(L-isomer) (CAS CATO-C4X-122424)
- Cefadroxil Impurity 28 (CAS CATO-C4X-122428)
- 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)
- 4,4',4'',4'''-Silanetetrayltetrabenzoic acid (CAS 10256-84-5)
- 3-(9-Fluoro-2-(piperidine-1-carbonyl)-1,2,3,4-tetrahydro-[1,4]diazepino[6,7,1-hi]indol-7-yl)-4-(imidazo[1,2-a]pyridin-3-yl)-1H-pyrrole-2,5-dione (CAS 603288-22-8)
- ((2-Fluoro-6-(methoxymethoxy)-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)ethynyl)triisopropylsilane (CAS 2621932-37-2)
- Landiolol Impurity 5 HCl (CAS CATO-C4X-26215)
- Fexofenadine Impurity 31 (CAS CATO-C4X-179431)
- Dopamine Impurity 34 (CAS CATO-C4X-190834)
- Rel-Mirogabalin Impurity 121 (CAS 1644251-69-3)
- N,N'-((1R,2R)-Cyclohexane-1,2-diyl)bis(1,1,1-trifluoromethanesulfonamide) (CAS 122833-60-7)
- (1S,2S)-2-(Diphenylphosphino)-2,3-dihydro-1H-inden-1-amine (CAS 1091606-69-7)
- 2-Hydroxyethyl propionate (CAS 24567-27-9)
- 4,5-dihydro-1H-cyclopenta[c]pyrazol-6-one (CAS 1087267-59-1)
- 1-Methyl-1H-pyrazolo[4,3-c]pyridine-6-carboxylic acid (CAS 1369164-66-8)
- D-Ile17-Tirzepatide (CAS CATO-CPTD788917)
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