Eperisone Impurity 38 HCl CAS 79219-40-2
| CAS No. | 79219-40-2 |
| Molecular Formula | C19H29NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Eperisone Impurity 38 HCl (CAS 79219-40-2) is a certified pharmaceutical impurity reference standard with the molecular formula C19H29NOHCl and a molecular weight of 323.90 g/mol.
The molecular framework of Eperisone Impurity 38 HCl (C19H29NOHCl) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H29NO HCl |
| Molecular Weight | 323.90 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 |
| 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 |
| CAS Registry Year (est.) | 1979 |
| 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)
Recommended Standards
- Mirogabalin Impurity 167 (CAS CATO-C4X-2924167)
- Emtricitabine Impurity 39 (CAS CATO-C4X-123239)
- Ioversol Impurity 9 (CAS 196309-13-4)
- 3-[(2-Fluorophenoxy)methyl]pyrrolidinehydrochloride (CAS 1219981-26-6)
- 2-Bromo-4-(bromomethyl)-5-fluoropyridine (CAS 1227509-89-8)
- Aprepitant impurity 34 (CAS CATO-C4X-237934)
- 2-(6-(Difluoromethyl)-2,4-difluoropyridin-3-yl)acetonitrile (CAS 1804710-33-5)
- 5-Bromo-6-fluoro-8-methylquinoline (CAS 1420793-20-9)
- 2-{[3-(4-Methoxy-phenyl)-acryloyl]-methyl-amino}-benzoic acid (CAS 717131-40-3)
- Atrial Natriuretic Polypeptide (4-28), human (CAS 95896-08-5)
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