Esomeprazole Impurity 110 CAS 91219-90-8

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.91219-90-8
Molecular FormulaC11H15NO3
Molecular Weight209.24 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Esomeprazole Impurity 110 CAS 91219-90-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 209.24 g/mol gives Esomeprazole Impurity 110 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Esomeprazole Impurity 110 (CAS 91219-90-8), a pharmacopoeial impurity reference standard (molecular formula C11H15NO3, MW 209.24 g/mol) used for the identification and quantification of trace impurities in APIs.

Esomeprazole Impurity 110 (C11H15NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), Esomeprazole Impurity 110 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 FormulaC11H15NO3
Molecular Weight209.24 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms1

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