Ezetimibe Impurity 37 CAS 149437-76-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.149437-76-3
Molecular FormulaC11H11FO3
Molecular Weight210.20 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ezetimibe Impurity 37 CAS 149437-76-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 210.20 g/mol gives Ezetimibe Impurity 37 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ezetimibe Impurity 37 (CAS 149437-76-3), a pharmacopoeial impurity reference standard (molecular formula C11H11FO3, MW 210.20 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C11H11FO3, Ezetimibe Impurity 37 contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), Ezetimibe Impurity 37 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 FormulaC11H11FO3
Molecular Weight210.20 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1999
Halogen ContentF-containing

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