2-Methyldihydrothiophen-3(2H)-one 1,1-dioxide CAS 55081-82-8

Purity 97%+In StockPharmaceutical Standards
CAS No.55081-82-8
Molecular FormulaC5H8O3S
Molecular Weight148.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyldihydrothiophen-3(2H)-one 1,1-dioxide CAS 55081-82-8 chemical structure

Description

The occurrence of 2-Methyldihydrothiophen-3(2H)-one 1,1-dioxide is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-Methyldihydrothiophen-3(2H)-one 1,1-dioxide (CAS 55081-82-8), a certified reference material (molecular formula C5H8O3S, MW 148.18 g/mol) for analytical method development and quality control.

Structurally, 2-Methyldihydrothiophen-3(2H)-one 1,1-dioxide (C5H8O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 148.18 g/mol, it falls into the low-molecular-weight range.

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 FormulaC5H8O3S
Molecular Weight148.18 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1972
Sulfur Atoms1

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