Imrecoxib Impurity 58 CAS CATO-C4X-237958
| CAS No. | CATO-C4X-237958 |
| Molecular Formula | C22H24O3S |
| Molecular Weight | 368.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Imrecoxib Impurity 58.
As a process- or degradation-related impurity, Imrecoxib Impurity 58 (CAS CATO-C4X-237958, C22H24O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Imrecoxib Impurity 58 (C22H24O3S) is characterized by a steroid core, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H24O3S |
| Molecular Weight | 368.49 g/mol |
| Purity | ≥95% |
| 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 |
| Sulfur Atoms | 1 |
Related Imrecoxib Standards
- Imrecoxib Impurity 1 (CAS CATO-C4X-23791)
- Imrecoxib Impurity 3 (CAS 2305368-53-8)
- Imrecoxib Impurity 8 (CAS CATO-C4X-23798)
- Imrecoxib (CAS 395683-14-4)
- Imrecoxib Impurity 7 (CAS CATO-C4X-23797)
- Imrecoxib Impurity 57 (CAS CATO-C4X-237957)
- Imrecoxib Impurity 51 (CAS CATO-C4X-237951)
- Imrecoxib Impurity 62 (CAS CATO-C4X-237962)
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