Vilanterol Impurity 87 CAS CATO-C4X-193587
| CAS No. | CATO-C4X-193587 |
| Molecular Formula | C24H31Cl2NO5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Vilanterol Impurity 87 (CAS CATO-C4X-193587) is a certified pharmaceutical impurity reference standard with the molecular formula C24H31Cl2NO5HCl and a molecular weight of 520.87 g/mol.
The molecular framework of Vilanterol Impurity 87 (C24H31Cl2NO5HCl) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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.
As a certified reference material (CRM), Vilanterol Impurity 87 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 | C24H31Cl2NO5 HCl |
| Molecular Weight | 520.87 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
| Nitrogen Atoms | 1 |
Related Vilanterol Standards
- Vilanterol impurity 90 (CAS 1027529-99-2)
- Vilanterol Impurity 54 HCI (CAS 1463889-71-5)
- Vilanterol Impurity 88 (CAS 1582675-85-1)
- Vilanterol Impurity 5 (CAS 1582675-85-1（free base）)
- Vilanterol-d4 Triphenylacetate (CAS 2021249-10-3(non-labelled))
- Vilanterol Impurity 15 (CAS 208925-08-0)
- Vilanterol Impurity 86 (CAS 2514696-13-8)
- Vilanterol Impurity 10 HCl (CAS 2514696-13-8（free base）)
Recommended Standards
- Lifitegrast Impurity 82 (CAS CATO-C4X-240982)
- Gadobutrol Impurity 140 4HCl (CAS CATO-C4X-2120140)
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- Esmolol Impurity 25 (CAS CATO-C4X-189125)
- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)(cyclobutyl)methanone (CAS 898772-52-6)
- 1-Propylindoline-3-carbaldehyde (CAS 1706432-77-0)
- 2-Oxo-2,3-dihydro-1,3-benzoxazole-5-sulfonyl chloride (CAS 78633-41-7)
- 3-Chloro-2-cyclopropoxy-N,N-dimethylaniline (CAS 1243281-59-5)
- (Z)-2-((4-chlorophenyl)thio)-1-(2,7-dimethylimidazo[1,2-a]pyridin-3-yl)ethan-1-one O-(4-fluorobenzyl) oxime (CAS 478047-79-9)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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