Etrasimod Impurity 72 CAS CATO-C4X-321472

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-321472
Molecular FormulaC13H14ClF3
Molecular Weight262.70 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Etrasimod Impurity 72 CAS CATO-C4X-321472 chemical structure

Description

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.

As a process- or degradation-related impurity, Etrasimod Impurity 72 (CAS CATO-C4X-321472, C13H14ClF3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Structurally, Etrasimod Impurity 72 (C13H14ClF3) contains fluorine/chlorine 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 262.70 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC13H14ClF3
Molecular Weight262.70 g/mol
Purity≥95%
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF/Cl-containing

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