Vilanterol Impurity 16 CAS CATO-C4X-193516
| CAS No. | CATO-C4X-193516 |
| Molecular Formula | C17H23NO5 |
| Molecular Weight | 321.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Vilanterol Impurity 16.
Vilanterol Impurity 16 (CAS CATO-C4X-193516) is a certified pharmaceutical impurity reference standard with the molecular formula C17H23NO5 and a molecular weight of 321.37 g/mol.
The molecular framework of Vilanterol Impurity 16 (C17H23NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Vilanterol Impurity 16 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H23NO5 |
| Molecular Weight | 321.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Vilanterol Standards
- Vilanterol Impurity 17 (CAS CATO-C4X-193517)
- Vilanterol Impurity 18 (CAS CATO-C4X-193518)
- Vilanterol Impurity 39 (CAS 452339-71-8)
- Vilanterol Impurity 56 (CAS CATO-C4X-193556)
- Vilanterol Impurity 36 (CAS 452339-72-9)
- Vilanterol Impurity 65 (CAS 503068-31-3)
- Vilanterol Impurity 63 (CAS CATO-C4X-193563)
- Vilanterol Impurity 55 (CAS CATO-C4X-193555)
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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