4-{[(E)-(3-Nitrophenyl)methylidene]amino}-5-(2-thienyl)-4H-1,2,4-triazole-3-thiol CAS 118159-01-6

Description

4-{[(E)-(3-Nitrophenyl)methylidene]amino}-5-(2-thienyl)-4H-1,2,4-triazole-3-thiol (C13H9N5O2S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

4-{[(E)-(3-Nitrophenyl)methylidene]amino}-5-(2-thienyl)-4H-1,2,4-triazole-3-thiol (CAS 118159-01-6), molecular formula C13H9N5O2S2 and molecular weight 331.37 g/mol, is a CATO reference standard with documented purity and traceability.

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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