4-Ethoxy-1-(4-fluorophenyl)-N-(thiophen-2-ylmethyl)-1H-pyrazole-3-carboxamide CAS 1189944-15-7

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.

4-Ethoxy-1-(4-fluorophenyl)-N-(thiophen-2-ylmethyl)-1H-pyrazole-3-carboxamide (CAS 1189944-15-7), molecular formula C17H16FN3O2S and molecular weight 345.39 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C17H16FN3O2S, 4-Ethoxy-1-(4-fluorophenyl)-N-(thiophen-2-ylmethyl)-1H-pyrazole-3-carboxamide contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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