Eperisone impurity 19 CAS CATO-C4X-227919
| CAS No. | CATO-C4X-227919 |
| Molecular Formula | C17H25NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Eperisone impurity 19 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Eperisone impurity 19 (CAS CATO-C4X-227919) is a certified pharmaceutical impurity reference standard with the molecular formula C17H25NOHCl and a molecular weight of 295.85 g/mol.
Based on its molecular formula C17H25NOHCl, Eperisone impurity 19 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 295.85 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H25NO HCl |
| Molecular Weight | 295.85 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Eperisone Standards
- Eperisone Impurity 4 (CAS 1026-87-5)
- Eperisone Impurity 39 (CAS 1159693-74-9)
- Eperisone Impurity 50 (CAS 1160227-93-9)
- Eperisone Impurity 15 (CAS 119558-67-7)
- Eperisone Impurity 25 HCl (CAS 119651-20-6)
- Eperisone-d10 HCl (CAS 1246819-46-4)
- Eperisone Impurity 31 (CAS 163437-00-1)
- Eperisone Impurity 8 (CAS 163437-01-2)
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