3-{1-[2-(4-chlorophenyl)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one CAS 1775357-46-4

Description

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.

3-{1-[2-(4-chlorophenyl)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775357-46-4), molecular formula C22H23ClN4O2 and molecular weight 410.90 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-{1-[2-(4-chlorophenyl)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (C22H23ClN4O2) is characterized by a steroid core, an amide group, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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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