4-((3-(Ethoxycarbonyl)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)amino)-4-oxobutanoic acid CAS 331760-61-3

Description

CATO supplies 4-((3-(Ethoxycarbonyl)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)amino)-4-oxobutanoic acid (CAS 331760-61-3), a certified reference material (molecular formula C15H17NO6S, MW 339.36 g/mol) for analytical method development and quality control.

4-((3-(Ethoxycarbonyl)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)amino)-4-oxobutanoic acid (C15H17NO6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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

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