Etrasimod Impurity 45 CAS CATO-C4X-321445
| CAS No. | CATO-C4X-321445 |
| Molecular Formula | C13H14ClF3 |
| Molecular Weight | 262.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Etrasimod Impurity 45 (CAS CATO-C4X-321445) is a certified pharmaceutical impurity reference standard with the molecular formula C13H14ClF3 and a molecular weight of 262.70 g/mol.
Etrasimod Impurity 45 (C13H14ClF3) contains fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), Etrasimod Impurity 45 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H14ClF3 |
| Molecular Weight | 262.70 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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/Cl-containing |
Related Etrasimod Standards
- Etrasimod Impurity 72 (CAS CATO-C4X-321472)
- Etrasimod Impurity 76 (CAS CATO-C4X-321476)
- Etrasimod impurity 16 (CAS CATO-C4X-321416)
- Etrasimod Impurity 23 (CAS CATO-C4X-321423)
- Etrasimod impurity 8 (CAS CATO-C4X-32148)
- Etrasimod Impurity 48 (CAS CATO-C4X-321448)
- Etrasimod Impurity 14 (CAS CATO-C4X-321414)
- Etrasimod impurity 22 (CAS CATO-C4X-321422)
Recommended Standards
- 5-amino-1-(3-chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-yl)-1H-pyrazole-4-carbonitrile (CAS 149978-57-4)
- 4'-Chloro-1,1''-dimethyl-1h,1'h,1''h-4,3':5',4''-terpyrazole (CAS 1240119-13-4)
- Clonixin (CAS 17737-65-4)
- 2-Chloro-n-[(4-sulfamoylphenyl)methyl]acetamide (CAS 101167-02-6)
- Ozanimod Impurity 31 (CAS CATO-C4X-290231)
- Cinitapride Impurity 35 (CAS CATO-C4X-290835)
- Oseltamivir impurity 281 (CAS CATO-C4X-1720281)
- ALizarin complexone dihydrate (CAS 455303-00-1)
- 5-Oxo-N-(p-tolyl)tetrahydrofuran-2-carboxamide (CAS 797795-82-5)
- N-(1-(1H-benzo[d]imidazol-2-yl)-2-methylpropyl)-3-chlorobenzamide (CAS 338422-98-3)
- 6-Fluoro-5-methyl-1,3-benzoxazol-2-amine (CAS 1820618-99-2)
- 2,4-Diiodo-6-nitroaniline (CAS 116529-49-8)
- Demethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid (CAS 1353018-10-6)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
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