Vilanterol Impurity 64 CAS CATO-C4X-193564
| CAS No. | CATO-C4X-193564 |
| Molecular Formula | C15H22BrClO2 |
| Molecular Weight | 349.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Vilanterol Impurity 64 (CAS CATO-C4X-193564) is a certified pharmaceutical impurity reference standard with the molecular formula C15H22BrClO2 and a molecular weight of 349.69 g/mol.
Based on its molecular formula C15H22BrClO2, Vilanterol Impurity 64 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 349.69 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).
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.
Physical & Chemical Properties
| Molecular Formula | C15H22BrClO2 |
| Molecular Weight | 349.69 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ＞90% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl/Br-containing |
Related Vilanterol Standards
- Vilanterol Impurity 38 (CAS CATO-C4X-193538)
- Vilanterol Impurity 68 (CAS CATO-C4X-193568)
- Vilanterol Impurity 70 (CAS CATO-C4X-193570)
- Vilanterol Impurity 34 (CAS 503070-64-2)
- Vilanterol Impurity 36 (CAS 452339-72-9)
- Vilanterol Impurity 16 (CAS CATO-C4X-193516)
- Vilanterol Impurity 17 (CAS CATO-C4X-193517)
- Vilanterol Impurity 18 (CAS CATO-C4X-193518)
Recommended Standards
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