Esomeprazole Sodium CAS 161796-78-7

Purity >95%In StockPharmaceutical Standards
CAS No.161796-78-7
Molecular FormulaC17H18N3O3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Esomeprazole Sodium CAS 161796-78-7 chemical structure

Description

The occurrence of Esomeprazole Sodium is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Esomeprazole Sodium (CAS 161796-78-7) is a high-purity analytical reference standard with the molecular formula C17H18N3O3SNa and a molecular weight of 367.40 g/mol.

The molecular framework of Esomeprazole Sodium (C17H18N3O3SNa) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), Esomeprazole Sodium 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 FormulaC17H18N3O3S Na
Molecular Weight367.40 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)10.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2003
Nitrogen Atoms3
Sulfur Atoms1

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