Nemonoxacin Impurity 77 CAS CATO-C4X-312877
| CAS No. | CATO-C4X-312877 |
| Molecular Formula | C19H23N3O4 |
| Molecular Weight | 357.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Nemonoxacin Impurity 77 (C19H23N3O4) is characterized by a flavonoid core, an amide 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).
Nemonoxacin Impurity 77 (CAS CATO-C4X-312877) is a certified pharmaceutical impurity reference standard with the molecular formula C19H23N3O4 and a molecular weight of 357.40 g/mol.
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.
CATO manufactures Nemonoxacin Impurity 77 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H23N3O4 |
| Molecular Weight | 357.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 31 (CAS CATO-C4X-312831)
- Nemonoxacin Impurity 39 (CAS 221221-39-2)
- Nemonoxacin Impurity 44 (CAS CATO-C4X-312844)
- 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
- (2R,3S)-N-Benzoyl-o-(1-ethoxyethyl)-3-phenylisoserine (CAS 216094-54-1)
- Boc-Ala-Ala-Pro-OH (CAS 63769-98-2)
- N-Nitroso Labetalol (Mixture of Diastereomers) (CAS 2820170-74-7)
- 3-Methyl-1-(4-methylbenzyl)-6-phenyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011397-32-2)
- Bosutinib Impurity 31 (CAS CATO-C4X-184731)
- Esmolol Impurity 45 (CAS CATO-C4X-189145)
- Finerenone Impurity 97 (CAS CATO-C4X-288097)
- Ethyl 6-bromo-2-cyano-3-methoxybenzoate (CAS 1807164-63-1)
- Pyridine, 5-(2-bromoethoxy)-2-fluoro- (CAS 1018975-85-3)
- 2-((2-Carboxyphenyl)amino)-3-methoxybenzoic acid (CAS 88377-32-6)
- 4-Chloropyrimidine-5-carbonyl chloride (CAS 1261494-35-2)
- 2-(3-Methoxyphenyl)butan-2-ol (CAS 211191-23-0)
- (S)-1-Fluoro-3-phenylpropan-2-amine hydrochloride (CAS 77210-51-6)
- Hexapeptide-9 (CAS 885024-94-2)
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