4-Methyl-5-(pyrazin-2-yl)-4h-1,2,4-triazole-3-thiol CAS 219600-07-4

Description

The occurrence of 4-Methyl-5-(pyrazin-2-yl)-4h-1,2,4-triazole-3-thiol is closely related to a nitrile group, sulfur-containing functionality, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Methyl-5-(pyrazin-2-yl)-4h-1,2,4-triazole-3-thiol (CAS 219600-07-4), molecular formula C7H7N5S and molecular weight 193.23 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrile group, sulfur-containing functionality, an aromatic ring system, 4-Methyl-5-(pyrazin-2-yl)-4h-1,2,4-triazole-3-thiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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

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