2-[(4-Methoxyphenyl)sulfonyl]-3-phenyl-5(2H)-isoxazolone CAS 303987-11-3

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-[(4-Methoxyphenyl)sulfonyl]-3-phenyl-5(2H)-isoxazolone.

2-[(4-Methoxyphenyl)sulfonyl]-3-phenyl-5(2H)-isoxazolone (CAS 303987-11-3) is a high-purity analytical reference standard with the molecular formula C16H13NO5S and a molecular weight of 331.34 g/mol.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-[(4-Methoxyphenyl)sulfonyl]-3-phenyl-5(2H)-isoxazolone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 331.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

CATO manufactures 2-[(4-Methoxyphenyl)sulfonyl]-3-phenyl-5(2H)-isoxazolone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

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