Esomeprazole Impurity 45 CAS 37466-89-0

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.37466-89-0
Molecular FormulaC7H10N2O
Molecular Weight138.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Esomeprazole Impurity 45 CAS 37466-89-0 chemical structure

Description

Esomeprazole Impurity 45 (CAS 37466-89-0) is a certified pharmaceutical impurity reference standard with the molecular formula C7H10N2O and a molecular weight of 138.17 g/mol.

Esomeprazole Impurity 45 (C7H10N2O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; 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.

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 FormulaC7H10N2O
Molecular Weight138.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1967
Nitrogen Atoms2

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