Imrecoxib Impurity 92 CAS CATO-C4X-23792
| CAS No. | CATO-C4X-23792 |
| Molecular Formula | C21H23NO4S |
| Molecular Weight | 385.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Imrecoxib Impurity 92 (CAS CATO-C4X-23792), a pharmacopoeial impurity reference standard (molecular formula C21H23NO4S, MW 385.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C21H23NO4S, Imrecoxib Impurity 92 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 385.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Imrecoxib Impurity 92 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 | C21H23NO4S |
| Molecular Weight | 385.48 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 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Imrecoxib Standards
- Imrecoxib Impurity 11 (CAS 896729-07-0)
- Imrecoxib Impurity 53 (CAS 3038592-00-3)
- Imrecoxib Impurity 26 (CAS 2305368-54-9)
- Imrecoxib Impurity 48（Z-isomer） (CAS CATO-C4X-237948)
- Imrecoxib Impurity 52（Z-Isomer） (CAS CATO-C4X-237952)
- Imrecoxib Impurity 67 (CAS CATO-C4X-237967)
- Imrecoxib Impurity 79 (CAS CATO-C4X-237979)
- Imrecoxib Impurity 81 (E-Isomer) (CAS CATO-C4X-237981)
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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