Nefopam impurity 17 CAS 82561-25-9
| CAS No. | 82561-25-9 |
| Molecular Formula | C17H19NO3 |
| Molecular Weight | 285.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H19NO3, Nefopam impurity 17 contains a steroid 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 285.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 process- or degradation-related impurity, Nefopam impurity 17 (CAS 82561-25-9, C17H19NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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 | C17H19NO3 |
| Molecular Weight | 285.34 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
Related Nefopam Standards
Recommended Standards
- Coclaurine Impurity 112 (CAS 116331-72-7)
- Pemafibrate Impurity 31 (CAS CATO-C4X-290331)
- Coclaurine Impurity 111 (CAS 2158201-34-2(TFA Salt))
- Pemafibrate Impurity 8 (CAS CATO-C4X-29038)
- Ornidazole Impurity 92 (CAS 1685317-97-8)
- Rivaroxaban Impurity 200 (CAS CATO-C4X-1090200)
- Carvedilol impurity 8 (CAS 18181-71-0)
- tert-Butyl (6-bromo-2-propylquinolin-4-yl)carbamate (CAS 948290-88-8)
- 2H-Benzo[b][1,4]oxazine-3(4H)-thione (CAS 14183-51-8)
- Methyl 2-((tert-butoxycarbonyl)amino)piperidine-1-carboxylate (CAS 1060812-60-3)
- [6-D-phenylalanine]Terlipressin (CAS CATO-C4X-21935)
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- 5-Bromo-3-cyano-2-(difluoromethyl)benzoic acid (CAS 1805593-78-5)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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