Vilanterol Impurity 46 CAS CATO-C4X-193546
| CAS No. | CATO-C4X-193546 |
| Molecular Formula | C24H36N2O6 |
| Molecular Weight | 448.55 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 46.
CATO supplies Vilanterol Impurity 46 (CAS CATO-C4X-193546), a pharmacopoeial impurity reference standard (molecular formula C24H36N2O6, MW 448.55 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Vilanterol Impurity 46 (C24H36N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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 448.55 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
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 | C24H36N2O6 |
| Molecular Weight | 448.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Vilanterol Standards
- Vilanterol Impurity 72 (CAS CATO-C4X-193572)
- Vilanterol Impurity 77 (CAS CATO-C4X-193577)
- Vilanterol Impurity 42 (CAS CATO-C4X-193542)
- Vilanterol Impurity 71 (CAS CATO-C4X-193571)
- Vilanterol Impurity 37 (CAS 452339-70-7)
- Vilanterol Impurity 86 (CAS 2514696-13-8)
- Vilanterol (CAS 503068-34-6)
- Vilanterol Racemate (CAS 957997-33-0)
Recommended Standards
- Carvedilol impurity 7 (CAS 1246819-01-1)
- 2-((2-Hydroxyethyl)disulfanyl)ethyl(2-butyl-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)carba (CAS 1353569-60-4)
- Canagliflozin Impurity 41 (CAS CATO-C4X-112341)
- 5-Ethyl-3-[4-(4-methoxyphenyl)piperazine-1-carbonyl]-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazolin-11-one (CAS 1574585-28-6)
- Avanafil Impurity 134 (CAS CATO-C4X-1118134)
- Ledipasvir Impurity 43 (CAS CATO-C4X-331343)
- Cefotiam Impurity 7 (CAS 61607-66-7)
- 2-Bromo-N,N-dimethyl-1H-imidazole-1-sulfonamide (CAS 1239205-21-0)
- 1-(4-Bromo-2-pyridyl)piperazine (CAS 1201643-59-5)
- 2-(Piperidin-2-yl)-1-(pyridin-2-yl)ethan-1-one (CAS 1499657-01-0)
- (2-Cyclopentyl-5-methyloxazol-4-yl)methanol (CAS 89724-29-8)
- Vilanterol Impurity 10 HCl (CAS 2514696-13-8（free base）)
- 2-(Pyridin-4-yl)-N-(thiazol-2-yl)quinoline-4-carboxamide (CAS 716363-23-4)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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