Nemonoxacin Impurity 4 CAS CATO-C4X-31284
| CAS No. | CATO-C4X-31284 |
| Molecular Formula | C20H25N3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Nemonoxacin Impurity 4.
As a process- or degradation-related impurity, Nemonoxacin Impurity 4 (CAS CATO-C4X-31284, C20H25N3O4C4H6O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Nemonoxacin Impurity 4 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 505.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 4 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 | C20H25N3O4 C4H6O5 |
| Molecular Weight | 505.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Nemonoxacin Standards
- Nemonoxacin Impurity 42 (CAS 1027572-10-6)
- Nemonoxacin Impurity 70 (CAS 1203651-05-1)
- Nemonoxacin Impurity 71 (CAS 1203651-06-2)
- Nemonoxacin Impurity 35 (CAS 1781915-09-0)
- Nemonoxacin Impurity 68 (CAS 2097748-62-2)
- Nemonoxacin Impurity 76 (CAS 221221-12-1)
- Nemonoxacin impurity 103 (CAS 221221-13-2)
- Nemonoxacin Impurity 25 (CAS 221221-15-4)
Recommended Standards
- Piracetam impurity 34 (CAS CATO-C4X-123534)
- Crisaborole lmpurity 70 (CAS CATO-C4X-202170)
- Betamethasone Valerate EP Impurity I (CAS 2802-10-0)
- 6-Cyclobutyl-2-(1-methoxyethyl)pyrimidin-4-amine (CAS 1707571-12-7)
- 2-amino-5-oxo-5-phenylpentanoic acid (CAS 1595014-12-2)
- cis-4-(aminomethyl)-1-methyl-cyclohexanol;hydrochloride (CAS 2250242-32-9)
- Nicardipine Impurity 71 (CAS CATO-C4X-171071)
- 5-Amino-N-(4-methoxy-phenyl)-2-morpholin-4-yl-benzenesulfonamide (CAS 326022-98-4)
- 2-Amino-6-methoxynicotinamide (CAS 1298123-77-9)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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