Eperisone Impurity 31 CAS 163437-00-1
| CAS No. | 163437-00-1 |
| Molecular Formula | C17H25NO |
| Molecular Weight | 259.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Eperisone Impurity 31 (CAS 163437-00-1, C17H25NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Eperisone Impurity 31 (C17H25NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
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 |
| Molecular Weight | 259.39 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
Related Eperisone Standards
- Eperisone Impurity 8 (CAS 163437-01-2)
- Eperisone (CAS 64840-90-0)
- Eperisone Impurity 32 (CAS CATO-C4X-227932)
- Eperisone Impurity 41 (CAS CATO-C4X-227941)
- Eperisone Impurity 8 (CAS CATO-C4X-22798)
- Eperisone Impurity 35 (CAS 388081-96-7)
- Eperisone Impurity 50 (CAS 1160227-93-9)
- Eperisone impurity 12 (CAS 760137-20-0)
Recommended Standards
- Pethidine impurity 9 (CAS CATO-C4X-22329)
- 1-(phenylmethyl)-4-(4-piperidinyl)piperazine hydrochloride 1-(phenylmethyl)-4-piperidin-4-yl-piperazine hydrochloride 686298-00-0 A836204 (CAS 686298-00-0)
- dezocine Impurity 3 (CAS 58406-56-7)
- Venlafaxine EP Impurity F (CAS 93413-57-1)
- Bevantolol Impurity 21 (CAS CATO-C4X-241121)
- Testosterone Impurity 53 (CAS CATO-C4X-243253)
- Ipratropium Bromide EP Impurity D (CAS 492-38-6)
- ethyl 5-methoxy-6-methylpyrazine-2-carboxylate (CAS 2104755-21-5)
- 4-Isobutyl-3-(pentan-3-yl)-1h-pyrazol-5-amine (CAS 1319726-54-9)
- 6-Chloro-2-methyl-5-nitro-N-(pentan-3-yl)pyrimidin-4-amine (CAS 53039-38-6)
- 4-Cyclopropoxy-N-methyl-2-(methylthio)pyridin-3-amine (CAS 1243349-71-4)
- 5-Fluoro-4-methoxypyridin-2-amine (CAS 1369766-95-9)
- 2-Chloro-1-ethoxy-1,1,2-trifluoroethane (CAS 310-71-4)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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