Arbidol Impurity 49 CAS 20862-91-3
| CAS No. | 20862-91-3 |
| Molecular Formula | C14H15NO4 |
| Molecular Weight | 261.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Arbidol Impurity 49 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.
Arbidol Impurity 49 (CAS 20862-91-3) is a certified pharmaceutical impurity reference standard with the molecular formula C14H15NO4 and a molecular weight of 261.27 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Arbidol Impurity 49 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.27 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).
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.
Physical & Chemical Properties
| Molecular Formula | C14H15NO4 |
| Molecular Weight | 261.27 g/mol |
| Appearance | Pale yellow to 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Arbidol Standards
- Arbidol Impurity 38 (CAS CATO-C4X-112938)
- Arbidol Impurity 16 (CAS CATO-C4X-112916)
- Arbidol Impurity 13 (CAS 40945-79-7)
- Arbidol Impurity 12 (CAS 15574-49-9)
- Arbidol Impurity 27 (CAS CATO-C4X-112927)
- Arbidol Impurity 40 (CAS 1106670-97-6)
- Arbidol Impurity 17 (CAS CATO-C4X-112917)
- Arbidol Impurity 39 (CAS CATO-C4X-112939)
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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