4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione CAS 1775468-57-9

Description

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 382.41 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).

4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methoxyphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775468-57-9), molecular formula C20H22N4O4 and molecular weight 382.41 g/mol, is a CATO reference standard with documented purity and traceability.

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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