2-(3,4-Dichlorophenyl)-5-(pyridin-3-yl)-1,3,4-thiadiazole CAS 15311-17-8

Description

Compared with other compounds in its class, the molecular weight of 308.19 g/mol gives 2-(3,4-Dichlorophenyl)-5-(pyridin-3-yl)-1,3,4-thiadiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(3,4-Dichlorophenyl)-5-(pyridin-3-yl)-1,3,4-thiadiazole (CAS 15311-17-8), molecular formula C13H7Cl2N3S and molecular weight 308.19 g/mol, is a CATO reference standard with documented purity and traceability.

2-(3,4-Dichlorophenyl)-5-(pyridin-3-yl)-1,3,4-thiadiazole (C13H7Cl2N3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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