8-Allyl-N-(2,5-dimethylphenyl)-2-oxo-2H-chromene-3-carboxamide CAS 325810-65-9

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.

8-Allyl-N-(2,5-dimethylphenyl)-2-oxo-2H-chromene-3-carboxamide (CAS 325810-65-9), molecular formula C21H19NO3 and molecular weight 333.38 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 8-Allyl-N-(2,5-dimethylphenyl)-2-oxo-2H-chromene-3-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 333.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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