2H-Thiopyran-3(6H)-one CAS 29431-30-9

Purity 97%+In StockPharmaceutical Standards
CAS No.29431-30-9
Molecular FormulaC5H6OS
Molecular Weight114.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2H-Thiopyran-3(6H)-one CAS 29431-30-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 114.17 g/mol gives 2H-Thiopyran-3(6H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2H-Thiopyran-3(6H)-one (CAS 29431-30-9) is a high-purity analytical reference standard with the molecular formula C5H6OS and a molecular weight of 114.17 g/mol.

Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, 2H-Thiopyran-3(6H)-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 114.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC5H6OS
Molecular Weight114.17 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1965
Sulfur Atoms1

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