Nemonoxacin Impurity 31 CAS CATO-C4X-312831
| CAS No. | CATO-C4X-312831 |
| Molecular Formula | C19H23N3O4 |
| Molecular Weight | 357.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Nemonoxacin Impurity 31 (CAS CATO-C4X-312831) is a certified pharmaceutical impurity reference standard with the molecular formula C19H23N3O4 and a molecular weight of 357.40 g/mol.
Based on its molecular formula C19H23N3O4, Nemonoxacin Impurity 31 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 357.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Nemonoxacin Impurity 31 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 | C19H23N3O4 |
| Molecular Weight | 357.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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 |
Related Nemonoxacin Standards
- Nemonoxacin Impurity 39 (CAS 221221-39-2)
- Nemonoxacin Impurity 44 (CAS CATO-C4X-312844)
- Nemonoxacin Impurity 77 (CAS CATO-C4X-312877)
- Nemonoxacin Impurity 86 (CAS CATO-C4X-312886)
- Nemonoxacin Impurity 89 (CAS CATO-C4X-312889)
- Nemonoxacin Impurity 57 (CAS CATO-C4X-312857)
- Nemonoxacin (CAS 378746-64-6)
- Nemonoxacin Impurity 7 (CAS CATO-C4X-31287)
Recommended Standards
- N-Nitroso Labetalol (Mixture of Diastereomers) (CAS 2820170-74-7)
- Nicergoline Impurity 31 (CAS CATO-C4X-208531)
- Ketorolac impurity 64 (CAS 141031-78-9)
- Naloxone Impurity 22 (CAS CATO-C4X-149322)
- Roxadustat Impurity 97 (CAS CATO-C4X-221397)
- Vazegepant Impurity 45 (CAS CATO-C4X-320045)
- Pimavanserin Impurity 49 (CAS CATO-C4X-193849)
- 2-(Methylthio)-N-(3-(trifluoromethyl)benzyl)quinazolin-4-amine (CAS 866137-98-6)
- (S)-5-fluoro-2-methyl-4-(pyrrolidin-2-yl)aniline (CAS 1213923-42-2)
- 4-Amino-4'-(trifluoromethoxy)-2-(trifluoromethyl)biphenyl (CAS 875774-78-0)
- N-(4-Sulfamoylphenethyl)-2-(thiophen-2-yl)quinoline-4-carboxamide (CAS 687576-28-9)
- 3-(4-Chlorophenyl)-3-hydroxy-2-methylpropanenitrile (CAS 831239-10-2)
- ethyl 3-(1-propyl-1H-imidazol-2-yl)propanoate (CAS 1519719-95-9)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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