Nemonoxacin Impurity 28 CAS 951163-63-6
| CAS No. | 951163-63-6 |
| Molecular Formula | C18H28N2O2 |
| Molecular Weight | 304.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Nemonoxacin Impurity 28 (CAS 951163-63-6), a pharmacopoeial impurity reference standard (molecular formula C18H28N2O2, MW 304.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Nemonoxacin Impurity 28 (C18H28N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
As a certified reference material (CRM), Nemonoxacin Impurity 28 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 | C18H28N2O2 |
| Molecular Weight | 304.43 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Nemonoxacin Standards
- Nemonoxacin Impurity 71 (CAS 1203651-06-2)
- Nemonoxacin Impurity 25 (CAS 221221-15-4)
- Nemonoxacin impurity 108 (CAS CATO-C4X-3128108)
- Nemonoxacin Impurity 40 (CAS CATO-C4X-312840)
- Nemonoxacin impurity 105 (CAS 656234-57-0)
- Nemonoxacin Impurity 24 (CAS CATO-C4X-312824)
- Nemonoxacin Impurity 100 (CAS CATO-C4X-3128100)
- Nemonoxacin Impurity 98 (CAS 926279-66-5)
Recommended Standards
- Suvorexant impurity 28 (CAS CATO-C4X-181228)
- Suvorexant impurity 27 (CAS CATO-C4X-181227)
- Terbufos-Sulfoxide (CAS 10548-10-4)
- Gabapentin impurity 35 (CAS CATO-C4X-165435)
- Bisacodyl Impurity 16 (CAS CATO-C4X-203716)
- Esmolol Impurity 93 (CAS CATO-C4X-189193)
- Fluvoxamine Impurity 19 (CAS CATO-C4X-195119)
- 3-(7-Butyl-2,6-dioxo-3-propyl-2,3,6,7-tetrahydro-1h-purin-8-yl)propanoic acid (CAS 743441-95-4)
- N-(4-aminocyclohexyl)cyclopropanesulfonamide (CAS 1339185-71-5)
- 4-Methyl-2-(pyridin-2-yl)pent-2-enenitrile (CAS 22346-07-2)
- 2-(4-Chloro-2,6-dimethylphenoxy)acetic acid (CAS 39944-18-8)
- 2-(4-Bromo-2-chlorophenoxy)butanoyl chloride (CAS 1160257-42-0)
- (Ethylsulfinyl)ethane (CAS 70-29-1)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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