4-(Benzo[b]thiophen-5-yl)-3,5-dimethylisoxazole CAS 1158208-69-5

Description

The occurrence of 4-(Benzo[b]thiophen-5-yl)-3,5-dimethylisoxazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-(Benzo[b]thiophen-5-yl)-3,5-dimethylisoxazole (CAS 1158208-69-5), a certified reference material (molecular formula C13H11NOS, MW 229.30 g/mol) for analytical method development and quality control.

Structurally, 4-(Benzo[b]thiophen-5-yl)-3,5-dimethylisoxazole (C13H11NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 229.30 g/mol, it falls into the medium-molecular-weight range. 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.

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

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