Fingolimod impurity 22 CAS CATO-C4X-164622

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-164622
Molecular FormulaC16H23ClO
Molecular Weight266.81 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fingolimod impurity 22 CAS CATO-C4X-164622 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 266.81 g/mol gives Fingolimod impurity 22 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Fingolimod impurity 22 (CAS CATO-C4X-164622), a pharmacopoeial impurity reference standard (molecular formula C16H23ClO, MW 266.81 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Fingolimod impurity 22 is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 266.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

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 FormulaC16H23ClO
Molecular Weight266.81 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl-containing

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