4-Methyl-1,3-dithiolan-2-one CAS 21548-49-2

Purity 97%+In StockPharmaceutical Standards
CAS No.21548-49-2
Molecular FormulaC4H6OS2
Molecular Weight134.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-1,3-dithiolan-2-one CAS 21548-49-2 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 4-Methyl-1,3-dithiolan-2-one.

4-Methyl-1,3-dithiolan-2-one (CAS 21548-49-2) is a high-purity analytical reference standard with the molecular formula C4H6OS2 and a molecular weight of 134.22 g/mol.

Based on its molecular formula C4H6OS2, 4-Methyl-1,3-dithiolan-2-one contains sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 134.22 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 FormulaC4H6OS2
Molecular Weight134.22 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.)1963
Sulfur Atoms2

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