5-Cyclopropyl-3-phenyl-1,2-oxazole-4-carboxylic acid CAS 943130-42-5

Description

Compared with other compounds in its class, the molecular weight of 229.23 g/mol gives 5-Cyclopropyl-3-phenyl-1,2-oxazole-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Cyclopropyl-3-phenyl-1,2-oxazole-4-carboxylic acid (CAS 943130-42-5) is a high-purity analytical reference standard with the molecular formula C13H11NO3 and a molecular weight of 229.23 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-Cyclopropyl-3-phenyl-1,2-oxazole-4-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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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