4-Phenyl-4H-1,2,4-triazole CAS 16227-12-6

Description

Compared with other compounds in its class, the molecular weight of 145.16 g/mol gives 4-Phenyl-4H-1,2,4-triazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Phenyl-4H-1,2,4-triazole (CAS 16227-12-6), molecular formula C8H7N3 and molecular weight 145.16 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Phenyl-4H-1,2,4-triazole (C8H7N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 145.16 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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