Epalrestat (E,Z)-Isomer CAS 124782-64-5

Purity 97%+In StockPharmaceutical Standards
CAS No.124782-64-5
Molecular FormulaC15H13NO3S2
Molecular Weight319.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Epalrestat (E,Z)-Isomer CAS 124782-64-5 chemical structure

Description

Epalrestat (E,Z)-Isomer (CAS 124782-64-5), molecular formula C15H13NO3S2 and molecular weight 319.40 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Epalrestat (E,Z)-Isomer (C15H13NO3S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC15H13NO3S2
Molecular Weight319.40 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Nitrogen Atoms1
Sulfur Atoms2

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Why CATO?