5-Ethoxy-1,2,4-thiadiazol-3-amine CAS 89124-90-3

Description

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.

5-Ethoxy-1,2,4-thiadiazol-3-amine (CAS 89124-90-3) is a high-purity analytical reference standard with the molecular formula C4H7N3OS and a molecular weight of 145.18 g/mol.

Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 5-Ethoxy-1,2,4-thiadiazol-3-amine is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 145.18 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.

Physical & Chemical Properties

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