Epinastine Impurity 47 CAS CATO-C4X-184047
| CAS No. | CATO-C4X-184047 |
| Molecular Formula | C28H25ClN2 |
| Molecular Weight | 424.96 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.
Epinastine Impurity 47 (CAS CATO-C4X-184047) is a certified pharmaceutical impurity reference standard with the molecular formula C28H25ClN2 and a molecular weight of 424.96 g/mol.
Epinastine Impurity 47 (C28H25ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, 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 | C28H25ClN2 |
| Molecular Weight | 424.96 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Epinastine Standards
- Epinastine Impurity 29 (CAS CATO-C4X-184029)
- Epinastine Impurity 33 (CAS CATO-C4X-184033)
- Epinastine Impurity 39 (CAS CATO-C4X-184039)
- Epinastine Impurity 21 (CAS CATO-C4X-184021)
- Epinastine Impurity 48 (CAS CATO-C4X-184048)
- Epinastine Impurity 23 (CAS 439288-43-4)
- Epinastine Impurity 31 (CAS 143878-20-0)
- Epinastine Impurity 30 (CAS CATO-C4X-184030)
Recommended Standards
- N-[(4-Chlorophenyl)methyl]-1-cyclohexyl-6-oxo-2-phenylpiperidine-3-carboxamide (CAS 439111-06-5)
- 1-(((4-(5-Chloro-2-methylphenyl)piperazin-1-yl)sulfonyl)methyl)-7,7-dimethylbicyclo[2.2.1]Heptan-2-one (CAS 1022130-08-0)
- Sotagliflozin (CAS 1018899-04-1)
- n-(2-Chloro-1-(3,4,5-trihydroxy-6-(methylthio)tetrahydro-2h-pyran-2-yl)propyl)-1-methyl-4-propylpyrrolidine-2-carboxamide (CAS 1097774-72-5)
- Iguratimod Impurity 45 (CAS CATO-C4X-182645)
- Dexlansoprazole Impurity 5 (CAS CATO-C4X-161245)
- Irbesartan Impurity 46 (CAS CATO-C4X-166646)
- 4-Bromo-5-(3-bromophenyl)-1h-pyrazole-3-carboxylic acid (CAS 1350454-01-1)
- 2,7-Dimethoxy-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1506663-80-4)
- 4-Ethoxy-3-nitrobenzaldehyde (CAS 132390-61-5)
- (E)-{2-[(4-chlorophenyl)sulfanyl]-2-methylpropylidene}[(4-nitrophenyl)methoxy]amine (CAS 306979-78-2)
- N-methyl-2-(2-methyl-1H-imidazol-1-yl)ethan-1-amine (CAS 883542-41-4)
- 2-(Isopropylthio)-1-phenylbutan-1-one (CAS 1184666-65-6)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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