Demeton-S CAS 126-75-0

Purity >90%In StockPharmaceutical Standards
CAS No.126-75-0
Molecular FormulaC8H19O3PS2
Molecular Weight258.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Demeton-S CAS 126-75-0 chemical structure

Description

Demeton-S (C8H19O3PS2) contains a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.

CATO supplies Demeton-S (CAS 126-75-0), a certified reference material (molecular formula C8H19O3PS2, MW 258.34 g/mol) for analytical method development and quality control.

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 FormulaC8H19O3PS2
Molecular Weight258.34 g/mol
Purity>90%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1957
Sulfur Atoms2

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