Etoricoxib Impurity 47 CAS CATO-C4X-108047
| CAS No. | CATO-C4X-108047 |
| Molecular Formula | C17H13ClN2O3S |
| Molecular Weight | 360.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Etoricoxib Impurity 47 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.
CATO supplies Etoricoxib Impurity 47 (CAS CATO-C4X-108047), a pharmacopoeial impurity reference standard (molecular formula C17H13ClN2O3S, MW 360.81 g/mol) used for the identification and quantification of trace impurities in APIs.
Etoricoxib Impurity 47 (C17H13ClN2O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C17H13ClN2O3S |
| Molecular Weight | 360.81 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Etoricoxib Standards
Recommended Standards
- Methyl 2-((3-(4-chlorophenyl)-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetate (CAS 28831-26-7)
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- Ethyl 2-[1-(4-chlorobenzenesulfonyl)-3-oxopiperazin-2-yl]acetate (CAS 318288-68-5)
- 2-{[3-(4-chlorophenyl)-4-oxo-3,4-dihydroquinazolin-2-yl]sulfanyl}acetohydrazide (CAS 133764-45-1)
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- 2-(5-(4-Methoxyphenyl)-1H-pyrazol-1-yl)pyrimidine-5-carbonitrile (CAS 321385-85-7)
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- 4-(Trifluoromethoxy)-1H-benzimidazole (CAS 1805884-47-2)
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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