Pazufloxacin Impurity 13 CAS CATO-C4X-233213
| CAS No. | CATO-C4X-233213 |
| Molecular Formula | C20H19FN2O6 |
| Molecular Weight | 402.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pazufloxacin Impurity 13 (CAS CATO-C4X-233213), a pharmacopoeial impurity reference standard (molecular formula C20H19FN2O6, MW 402.37 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Pazufloxacin Impurity 13 (C20H19FN2O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. 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.
As a certified reference material (CRM), Pazufloxacin Impurity 13 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 | C20H19FN2O6 |
| Molecular Weight | 402.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Pazufloxacin Standards
- Pazufloxacin Impurity 6 (CAS CATO-C4X-23326)
- Pazufloxacin Impurity 16 (CAS CATO-C4X-233216)
- Pazufloxacin Impurity 4 (CAS CATO-C4X-23324)
- Pazufloxacin Impurity 2 (CAS CATO-C4X-23322)
- Pazufloxacin Impurity 17 (CAS 164851-44-9)
- Pazufloxacin Impurity 23 (CAS CATO-C4X-233223)
- Pazufloxacin Impurity 22 (CAS CATO-C4X-233222)
- Pazufloxacin Impurity 12 (CAS CATO-C4X-233212)
Recommended Standards
- Argatroban Impurity 89 (CAS CATO-C4X-100789)
- N-(4-Methoxyphenyl)-2-oxo-1-{[4-(trifluoromethyl)phenyl]methyl}-1,2-dihydropyridine-3-carboxamide (CAS 338977-43-8)
- [2,6-Bis[(dimethylamino)methyl]phenyl-C,N][(1,2,5,6-η)-1,5-cyclooctadiene]rhodium (CAS 115338-66-4)
- N-(4-methoxyphenyl)-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxamide (CAS 339027-67-7)
- Ampicillin Impurity 83 (CAS CATO-C4X-144383)
- Boc-His-Aib-Glu(OtBu)-Gly-OH (CAS CATO-C4X-2226120)
- Carfilzomib Impurity 49 (CAS CATO-C4X-102249)
- 2-((3-ACETYL-1H-INDOL-4-YL)OXY)ACETONITRILE (CAS 118855-77-9)
- 3-Hydroxy-3-(1-phenyl-1h-pyrazol-4-yl)propanoic acid (CAS 1275849-39-2)
- 3-Chloro-N-(2-isopropylphenyl)propanamide (CAS 560078-34-4)
- 2-Methyl-6-phenoxynicotinonitrile (CAS 1355237-75-0)
- 2,4-Dichloro-6-(isoxazol-5-yl)phenol (CAS 288401-44-5)
- 2-Ethylbenzo[d]oxazol-4-amine (CAS 477603-35-3)
- Peptide-GMF (CAS CATO-CPTD788469)
Why CATO?
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