3-[3-(Methylsulfanyl)-1H-1,2,4-triazol-5-yl]-1-phenylurea CAS 943407-91-8

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-[3-(Methylsulfanyl)-1H-1,2,4-triazol-5-yl]-1-phenylurea (CAS 943407-91-8), molecular formula C10H11N5OS and molecular weight 249.29 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-[3-(Methylsulfanyl)-1H-1,2,4-triazol-5-yl]-1-phenylurea (C10H11N5OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 249.29 g/mol, it falls into the medium-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.

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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