Vilanterol Impurity 32 CAS CATO-C4X-193532
| CAS No. | CATO-C4X-193532 |
| Molecular Formula | C24H30Cl4O4 |
| Molecular Weight | 524.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Vilanterol Impurity 32 (C24H30Cl4O4) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 524.30 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Vilanterol Impurity 32 (CAS CATO-C4X-193532, C24H30Cl4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 certified reference material (CRM), Vilanterol Impurity 32 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H30Cl4O4 |
| Molecular Weight | 524.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Vilanterol Standards
- Vilanterol Impurity C05 (CAS 503068-37-9)
- Vilanterol Impurity 48 (CAS CATO-C4X-193548)
- Vilanterol Impurity 12 (CAS CATO-C4X-193512)
- Vilanterol Impurity 88 (CAS 1582675-85-1)
- Vilanterol Impurity 83 (CAS CATO-C4X-193583)
- Vilanterol Impurity 92 (CAS CATO-C4X-193592)
- Vilanterol Impurity 22 (CAS CATO-C4X-193522)
- Vilanterol Impurity 51 (CAS CATO-C4X-193551)
Recommended Standards
- Pretomanid Impurity 10 (CAS CATO-C4X-260610)
- (E)-N-(5-(Perfluoroethylidene)-4,4-bis(trifluoromethyl)-4,5-dihydrothiazol-2-yl)-4-(trifluoromethyl)benzothioamide (CAS 143811-19-2)
- Dimethoxybis(2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenyl)silane (CAS 1309602-60-5)
- Fosfomycin Impurity 25 (CAS CATO-C4X-131625)
- Capivasertib Impurity 19 (CAS CATO-C4X-331219)
- Procaine Impurity 2 (CAS 7073-36-1)
- Diclofenac sodium Impurity 49 (CAS CATO-C4X-105149)
- 1-Propyl-1H-benzo[d]imidazol-5-amine dihydrochloride (CAS 1269039-56-6)
- Pimobendan Impurity 8 (CAS CATO-C4X-24618)
- (S)-tert-Butyl (1-(((6-chloropyridin-3-yl)methyl)(methyl)amino)-1-oxopropan-2-yl)carbamate (CAS 1421033-13-7)
- 2-Bromo-1,6-naphthyridin-5(6H)-one (CAS 1260666-22-5)
- N1-([1,1'-Biphenyl]-4-yl)-N1-(4-(bis(3,5-dimethylphenyl)amino)phenyl)-N4,N4-bis(3,5-dimethylphenyl)benzene-1,4-diamine (CAS 249609-49-2)
- Methyl 3-(sulfamoylmethyl)benzoate (CAS 1001404-12-1)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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