Fingolimod impurity 23 CAS 51326-38-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.51326-38-6
Molecular FormulaC16H23ClO
Molecular Weight266.81 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fingolimod impurity 23 CAS 51326-38-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 266.81 g/mol gives Fingolimod impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Fingolimod impurity 23 (CAS 51326-38-6) is a certified pharmaceutical impurity reference standard with the molecular formula C16H23ClO and a molecular weight of 266.81 g/mol.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Fingolimod impurity 23 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 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).

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.

As a certified reference material (CRM), Fingolimod impurity 23 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 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
CAS Registry Year (est.)1971
Halogen ContentCl-containing

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