5-(pyrazin-2-yl)-1,3,4-oxadiazole-2-thiol CAS 37545-39-4

Description

Based on its molecular formula C6H4N4OS, 5-(pyrazin-2-yl)-1,3,4-oxadiazole-2-thiol contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

5-(pyrazin-2-yl)-1,3,4-oxadiazole-2-thiol (CAS 37545-39-4), molecular formula C6H4N4OS and molecular weight 180.19 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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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