Vilanterol Impurity 82 CAS CATO-C4X-193582
| CAS No. | CATO-C4X-193582 |
| Molecular Formula | C9H10Cl2O2 |
| Molecular Weight | 221.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Vilanterol Impurity 82 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.
Vilanterol Impurity 82 (CAS CATO-C4X-193582) is a certified pharmaceutical impurity reference standard with the molecular formula C9H10Cl2O2 and a molecular weight of 221.08 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Vilanterol Impurity 82 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C9H10Cl2O2 |
| Molecular Weight | 221.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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-containing |
Related Vilanterol Standards
- Vilanterol Impurity 35 (CAS 85309-91-7)
- Vilanterol Impurity 81 (CAS CATO-C4X-193581)
- Vilanterol Impurity 15 (CAS 208925-08-0)
- Vilanterol Impurity 45 (CAS CATO-C4X-193545)
- Vilanterol Impurity 79 (CAS CATO-C4X-193579)
- Vilanterol Impurity 1 (CAS CATO-C4X-19351)
- Vilanterol Impurity 2 (CAS CATO-C4X-19352)
- Vilanterol Impurity 3 (CAS 452340-96-4)
Recommended Standards
- 4-Bromo-2-fluoro-5-methylbenzenethiol (CAS 1011460-49-3)
- (2-Bromo-4-fluorophenyl)methanethiol (CAS 1016506-12-9)
- Nintedanib Impurity 91 (CAS CATO-C4X-181491)
- Methyl 4-bromocyclohexane-1-carboxylate (CAS 101654-20-0)
- Olanzapine Impurity 44 HCl (CAS 935272-10-9（free base）)
- Amorolfine Impurity N2 (CAS 67468-13-7)
- Delafloxacin Impurity 15 (CAS CATO-C4X-263715)
- 4-Chloro-N-(phenylmethyl)-2-pyridinecarboxamide (CAS 116275-39-9)
- (1-(Pyrimidin-2-yl)cyclopropyl)methanamine (CAS 1782642-43-6)
- 5-bromo-N-(3-chloro-4-methylphenyl)pyridine-2-carboxamide (CAS 1405844-43-0)
- 3-(3,4-Dimethoxybenzamido)-3-(4-fluorophenyl)propanoic acid (CAS 332052-63-8)
- 2-((3,4-Dichlorobenzyl)amino)-1H-purin-6(9H)-one (CAS 133338-58-6)
- (1<I>S</I>,2<I>S</I>,3<I>S</I>,5<I>R</I>)-(+)-isopinecamphene amine (CAS 13293-47-5)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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