Celecoxib Impurity 73 CAS CATO-C4X-104373
| CAS No. | CATO-C4X-104373 |
| Molecular Formula | C24H25N3O2S |
| Molecular Weight | 419.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Celecoxib Impurity 73 (C24H25N3O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Celecoxib Impurity 73 (CAS CATO-C4X-104373, C24H25N3O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Celecoxib Impurity 73 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 | C24H25N3O2S |
| Molecular Weight | 419.54 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Celecoxib Standards
- Celecoxib Impurity 66 (CAS CATO-C4X-104366)
- Celecoxib Carboxylic Acid Methyl Ester (CAS 1189893-75-1)
- Celecoxib Impurity 23 (CAS 2247197-65-3)
- Celecoxib Impurity 51 (CAS CATO-C4X-104351)
- Celecoxib Impurity 65 (CAS CATO-C4X-104365)
- Celecoxib Impurity 3(Celecoxib Carboxylic Acid) (CAS 170571-01-4)
- Celecoxib Impurity 18 (CAS 2247197-67-5)
- Celecoxib Impurity 41 (CAS 1803258-57-2)
Recommended Standards
- S-Octylglutathione (CAS 24435-27-6)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-[4-(1,1,3,3-tetramethylbutyl)phenoxy]-2-pyrrolidinecarboxylic acid (CAS 1217802-66-8)
- N-{5,6-dimethyl-1-[(4-methylphenyl)methyl]-1H-1,3-benzodiazol-4-yl}-4-methylbenzene-1-sulfonamide (CAS 338423-17-9)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-[2,4-di(tert-butyl)phenoxy]-2-pyrrolidinecarboxylic acid (CAS 1354486-67-1)
- Pantoprazole Impurity 76 (CAS CATO-C4X-139976)
- Iloperidone Impurity 5 (CAS 19417-90-4)
- Ziprasidone Impurity 30 (CAS 188797-80-0)
- Anidulafungin Impurity B (CAS 2099166-85-3)
- 5-(1-Methyl-4-nitro-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 1004727-48-3)
- 6-Bromoimidazo[1,2-a]pyridine-8-carbonitrile (CAS 911113-15-0)
- 6-(2,4-Diamino-6-oxo-1,6-dihydropyrimidin-5-yl)hexanal 2,2,2-trifluoroacetate (CAS 647831-48-9)
- (2-Ethoxy-5-fluorophenyl)(methyl)sulfane (CAS 1378582-94-5)
- 2-(4-Nitrophenyl)ethane-1-sulfonyl chloride (CAS 80259-15-0)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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