Imrecoxib Impurity 3 CAS 2305368-53-8
| CAS No. | 2305368-53-8 |
| Molecular Formula | C21H23NO3S |
| Molecular Weight | 369.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Imrecoxib Impurity 3 (C21H23NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 369.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Imrecoxib Impurity 3 (CAS 2305368-53-8, C21H23NO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Imrecoxib Impurity 3 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 | C21H23NO3S |
| Molecular Weight | 369.48 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Imrecoxib Standards
- Imrecoxib Impurity 1 (CAS CATO-C4X-23791)
- Imrecoxib Impurity 8 (CAS CATO-C4X-23798)
- Imrecoxib (CAS 395683-14-4)
- Imrecoxib Impurity 58 (CAS CATO-C4X-237958)
- Imrecoxib Impurity 51 (CAS CATO-C4X-237951)
- Imrecoxib Impurity 62 (CAS CATO-C4X-237962)
- Imrecoxib Impurity 7 (CAS CATO-C4X-23797)
- Imrecoxib Impurity 57 (CAS CATO-C4X-237957)
Recommended Standards
- Brinzolamide Impurity 23 (CAS CATO-C4X-194023)
- Amisulpride EP Impurity G (CAS 148516-68-1)
- 2-(((4-Amino-6-(dimethylamino)-1,3,5-triazin-2-yl)methyl)thio)-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine-3-carbonitrile (CAS 728001-49-8)
- Amisulpride (CAS 71675-85-9)
- Niraparib Impurity 64 (CAS 2820493-80-7)
- Imipenem Impurity 110 (CAS CATO-C4X-1662110)
- Ambroxol Impurity 47 (CAS 2250242-11-4)
- 5-Chloro-N-(2,4-difluorophenyl)-6-oxo-1-(3-(trifluoromethyl)benzyl)-1,6-dihydropyridine-3-carboxamide (CAS 339024-18-9)
- Josamycin Propionate - API Standards (CAS 40922-77-8)
- 4-Bromo-5-cyano-2-formylbenzoic acid (CAS 1805486-23-0)
- 5-Chloro-2-methylbenzenethiol (CAS 18858-06-5)
- 3-(2,2,2-Trifluoroethoxy)propanoic acid (CAS 1016854-20-8)
- 2-(((5-Methylimidazo[1,2-a]pyridin-2-yl)methyl)thio)aniline (CAS 304685-19-6)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
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