4-Methyl-2,3-dihydrothiophene 1,1-Dioxide CAS 872-94-6

Purity 97%+In StockPharmaceutical Standards
CAS No.872-94-6
Molecular FormulaC5H8O2S
Molecular Weight132.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-2,3-dihydrothiophene 1,1-Dioxide CAS 872-94-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 132.18 g/mol gives 4-Methyl-2,3-dihydrothiophene 1,1-Dioxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Methyl-2,3-dihydrothiophene 1,1-Dioxide (CAS 872-94-6), molecular formula C5H8O2S and molecular weight 132.18 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C5H8O2S, 4-Methyl-2,3-dihydrothiophene 1,1-Dioxide contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 132.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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 FormulaC5H8O2S
Molecular Weight132.18 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Sulfur Atoms1

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Why CATO?