methyl ({4-methyl-5-[(3-methyl-1H-pyrazol-1-yl)methyl]-4H-1,2,4-triazol-3-yl}thio)acetate CAS 1001519-00-1

Description

methyl ({4-methyl-5-[(3-methyl-1H-pyrazol-1-yl)methyl]-4H-1,2,4-triazol-3-yl}thio)acetate (CAS 1001519-00-1), molecular formula C11H15N5O2S and molecular weight 281.33 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of methyl ({4-methyl-5-[(3-methyl-1H-pyrazol-1-yl)methyl]-4H-1,2,4-triazol-3-yl}thio)acetate (C11H15N5O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 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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