Ethyl 2-({7-hydroxy-3-[(4-methoxyphenyl)carbamoyl]-2H-chromen-2-ylidene}amino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate CAS 330663-43-9

Description

CATO supplies Ethyl 2-({7-hydroxy-3-[(4-methoxyphenyl)carbamoyl]-2H-chromen-2-ylidene}amino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate (CAS 330663-43-9), a certified reference material (molecular formula C28H26N2O6S, MW 518.58 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 2-({7-hydroxy-3-[(4-methoxyphenyl)carbamoyl]-2H-chromen-2-ylidene}amino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate (C28H26N2O6S) is characterized by a steroid core, 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

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