5-Methylisothiazol-3-amine CAS 128146-85-0

Description

Compared with other compounds in its class, the molecular weight of 114.17 g/mol gives 5-Methylisothiazol-3-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methylisothiazol-3-amine (CAS 128146-85-0), molecular formula C4H6N2S and molecular weight 114.17 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrile group, sulfur-containing functionality, 5-Methylisothiazol-3-amine is typically white to pale yellow 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.

CATO manufactures 5-Methylisothiazol-3-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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