Nemonoxacin Impurity 3 CAS 2770004-82-3
| CAS No. | 2770004-82-3 |
| Molecular Formula | C24H29N3O8 |
| Molecular Weight | 487.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Nemonoxacin Impurity 3 (C24H29N3O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Nemonoxacin Impurity 3 (CAS 2770004-82-3), a pharmacopoeial impurity reference standard (molecular formula C24H29N3O8, MW 487.50 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H29N3O8 |
| Molecular Weight | 487.50 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 3 |
Related Nemonoxacin Standards
- Nemonoxacin Impurity 1 (CAS 2770004-80-1)
- Nemonoxacin Impurity 2 (CAS 2770004-81-2)
- Nemonoxacin Impurity 6 (CAS 2770004-79-8)
- Nemonoxacin Impurity 74 (CAS CATO-C4X-312874)
- Nemonoxacin Impurity 75 (CAS CATO-C4X-312875)
- Nemonoxacin Impurity 33 (CAS 951313-25-0)
- Nemonoxacin Impurity 73 (CAS CATO-C4X-312873)
- Nemonoxacin Impurity 61 (CAS CATO-C4X-312861)
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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