5-(3-Chloropropyl)-3-(thiophen-2-yl)-1,2,4-oxadiazole CAS 19580-45-1

Description

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.

5-(3-Chloropropyl)-3-(thiophen-2-yl)-1,2,4-oxadiazole (CAS 19580-45-1), molecular formula C9H9ClN2OS and molecular weight 228.70 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5-(3-Chloropropyl)-3-(thiophen-2-yl)-1,2,4-oxadiazole (C9H9ClN2OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

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