1-Ethyl-5-(5-mercapto-4-methyl-4H-1,2,4-triazol-3-yl)pyridin-2(1H)-one CAS 1105196-02-8

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.

1-Ethyl-5-(5-mercapto-4-methyl-4H-1,2,4-triazol-3-yl)pyridin-2(1H)-one (CAS 1105196-02-8), molecular formula C10H12N4OS and molecular weight 236.29 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-Ethyl-5-(5-mercapto-4-methyl-4H-1,2,4-triazol-3-yl)pyridin-2(1H)-one (C10H12N4OS) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 236.29 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com