Celecoxib EP Impurity A CAS 170570-01-1
| CAS No. | 170570-01-1 |
| Molecular Formula | C17H14F3N3O2S |
| Molecular Weight | 381.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H14F3N3O2S, Celecoxib EP Impurity A contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 381.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Celecoxib EP Impurity A (CAS 170570-01-1) is a certified pharmaceutical impurity reference standard with the molecular formula C17H14F3N3O2S and a molecular weight of 381.37 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Celecoxib EP Impurity A 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 | C17H14F3N3O2S |
| Molecular Weight | 381.37 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Celecoxib Standards
- Celecoxib (CAS 169590-42-5)
- Celecoxib EP Impurity B (CAS 331943-04-5)
- Celecoxib Impurity 42 (CAS CATO-C4X-104342)
- Celecoxib Impurity 8 (CAS 170569-99-0)
- Celecoxib Impurity 48 (CAS 921617-76-7)
- Celecoxib Impurity 12 (CAS 1061214-09-2)
- Celecoxib Impurity 26 (Mixture of Z and E Isomers) (CAS CATO-C4X-104326)
- Celecoxib-d4 (CAS 544686-20-6)
Recommended Standards
- N-Dodecyl-2,2,3,3,4,4,4-heptafluorobutanamide (CAS 2284-51-7)
- N-{[1-methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl}thiophene-2-carboxamide (CAS 956754-18-0)
- N-(2,3-dimethylquinoxalin-6-yl)-3-(trifluoromethyl)benzenesulfonamide (CAS 672950-09-3)
- 1-(4-Nitrophenyl)-3-(p-tolyl)indeno[1,2-c]pyrazol-4(1H)-one (CAS 1024118-12-4)
- Isavuconazole Impurity 223 (CAS CATO-C4X-1236223)
- Relebactam Impurity 70 (CAS 1822463-49-9)
- Linaprazan Impurity 14 (CAS CATO-C4X-348614)
- Foretinib (CAS 849217-64-7)
- Methyl (S)-3-Morpholinecarboxylate (CAS 741288-31-3)
- 2,2,2-Trifluoroethyl N-cyclobutylcarbamate (CAS 1486772-85-3)
- Linagliptin Impurity 70 (CAS 2253964-98-4)
- Qingyangshengenin A (CAS 106644-33-1)
- 6-Iodo-2-(methylsulfonyl)benzo[d]thiazole (CAS 1161730-22-8)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
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