4-Methoxy-3,4-diphenylisoxazol-5(4H)-one CAS 89773-83-1

Description

Compared with other compounds in its class, the molecular weight of 267.28 g/mol gives 4-Methoxy-3,4-diphenylisoxazol-5(4H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Methoxy-3,4-diphenylisoxazol-5(4H)-one (CAS 89773-83-1), molecular formula C16H13NO3 and molecular weight 267.28 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H13NO3, 4-Methoxy-3,4-diphenylisoxazol-5(4H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 4-Methoxy-3,4-diphenylisoxazol-5(4H)-one 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

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