Etrasimod Impurity 48 CAS CATO-C4X-321448
| CAS No. | CATO-C4X-321448 |
| Molecular Formula | C13H15F3O |
| Molecular Weight | 244.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Etrasimod Impurity 48 (CAS CATO-C4X-321448), a pharmacopoeial impurity reference standard (molecular formula C13H15F3O, MW 244.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Etrasimod Impurity 48 (C13H15F3O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 244.25 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H15F3O |
| Molecular Weight | 244.25 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Etrasimod Standards
- Etrasimod Impurity 14 (CAS CATO-C4X-321414)
- Etrasimod impurity 22 (CAS CATO-C4X-321422)
- Etrasimod Impurity 58 (CAS 380350-42-5)
- Etrasimod Impurity 34 (CAS CATO-C4X-321434)
- Etrasimod Impurity 61 (CAS CATO-C4X-321461)
- Etrasimod Impurity 23 (CAS CATO-C4X-321423)
- Etrasimod Impurity 77 (CAS CATO-C4X-321477)
- Etrasimod impurity 16 (CAS CATO-C4X-321416)
Recommended Standards
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- Momelotinib impurity 14 (CAS 2107522-02-9)
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- Momelotinib impurity 15 (CAS CATO-C4X-337715)
- Bromfenac Impurity 39 (CAS CATO-C4X-200239)
- Alvimopan impurity 11 (CAS CATO-C4X-114511)
- Epristeride Impurity 4 (CAS CATO-C4X-30084)
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Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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