N-(2,6-Dimethylphenyl)-5-phenylisoxazole-3-carboxamide CAS 145440-89-7

Purity 97%+In StockPharmaceutical Standards
CAS No.145440-89-7
Molecular FormulaC18H16N2O2
Molecular Weight292.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(2,6-Dimethylphenyl)-5-phenylisoxazole-3-carboxamide CAS 145440-89-7 chemical structure

Description

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.

CATO supplies N-(2,6-Dimethylphenyl)-5-phenylisoxazole-3-carboxamide (CAS 145440-89-7), a certified reference material (molecular formula C18H16N2O2, MW 292.33 g/mol) for analytical method development and quality control.

Based on its molecular formula C18H16N2O2, N-(2,6-Dimethylphenyl)-5-phenylisoxazole-3-carboxamide 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 292.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC18H16N2O2
Molecular Weight292.33 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998
Nitrogen Atoms2

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