S-Pent-4-yn-1-yl Ethanethioate CAS 524689-75-6

Purity 97%+In StockPharmaceutical Standards
CAS No.524689-75-6
Molecular FormulaC7H10OS
Molecular Weight142.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

S-Pent-4-yn-1-yl Ethanethioate CAS 524689-75-6 chemical structure

Description

S-Pent-4-yn-1-yl Ethanethioate (CAS 524689-75-6), molecular formula C7H10OS and molecular weight 142.22 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, S-Pent-4-yn-1-yl Ethanethioate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 142.22 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 FormulaC7H10OS
Molecular Weight142.22 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1984
Sulfur Atoms1

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