5-(3-Chlorophenyl)-4-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol CAS 720667-75-4

Description

5-(3-Chlorophenyl)-4-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 720667-75-4), molecular formula C14H9ClFN3S and molecular weight 305.76 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution, 5-(3-Chlorophenyl)-4-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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