5-(4-Methoxyphenyl)-3-(p-tolyl)isoxazole CAS 37613-33-5

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.

5-(4-Methoxyphenyl)-3-(p-tolyl)isoxazole (CAS 37613-33-5), molecular formula C17H15NO2 and molecular weight 265.31 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C17H15NO2, 5-(4-Methoxyphenyl)-3-(p-tolyl)isoxazole contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 265.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), 5-(4-Methoxyphenyl)-3-(p-tolyl)isoxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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