Imrecoxib Impurity 18 CAS CATO-C4X-237918
| CAS No. | CATO-C4X-237918 |
| Molecular Formula | C18H16O5S |
| Molecular Weight | 344.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H16O5S, Imrecoxib Impurity 18 contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Imrecoxib Impurity 18 (CAS CATO-C4X-237918) is a certified pharmaceutical impurity reference standard with the molecular formula C18H16O5S and a molecular weight of 344.38 g/mol.
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 Imrecoxib Impurity 18 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 | C18H16O5S |
| Molecular Weight | 344.38 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Imrecoxib Standards
- Imrecoxib Impurity 27 (CAS CATO-C4X-237927)
- Imrecoxib Impurity 13 (CAS 1338083-52-5)
- Imrecoxib Impurity 5 (CAS CATO-C4X-23795)
- Imrecoxib Impurity 73 (CAS CATO-C4X-237973)
- Imrecoxib Impurity 74 (CAS CATO-C4X-237974)
- Imrecoxib Impurity 25 (CAS CATO-C4X-237925)
- Imrecoxib Impurity 49 (CAS CATO-C4X-237949)
- Imrecoxib Impurity 14 (CAS 959003-56-6)
Recommended Standards
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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