Etrasimod Impurity 24 CAS CATO-C4X-321424

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-321424
Molecular FormulaC26H26F3NO4
Molecular Weight473.48 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Etrasimod Impurity 24 CAS CATO-C4X-321424 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 473.48 g/mol gives Etrasimod Impurity 24 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Etrasimod Impurity 24 (CAS CATO-C4X-321424) is a certified pharmaceutical impurity reference standard with the molecular formula C26H26F3NO4 and a molecular weight of 473.48 g/mol.

The molecular framework of Etrasimod Impurity 24 (C26H26F3NO4) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), Etrasimod Impurity 24 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 FormulaC26H26F3NO4
Molecular Weight473.48 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity≥95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF-containing
Nitrogen Atoms1

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