Iguratimod Impurity 127 CAS CATO-C4X-1826127

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1826127
Molecular FormulaC2H8N2O4S2
Molecular Weight188.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Iguratimod Impurity 127 CAS CATO-C4X-1826127 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Iguratimod Impurity 127.

CATO supplies Iguratimod Impurity 127 (CAS CATO-C4X-1826127), a pharmacopoeial impurity reference standard (molecular formula C2H8N2O4S2, MW 188.23 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C2H8N2O4S2, Iguratimod Impurity 127 contains an amide group, a sulfone group, a carboxylic acid group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 188.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC2H8N2O4S2
Molecular Weight188.23 g/mol
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)0.0
Nitrogen Atoms2
Sulfur Atoms2

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