Ethyl 2-(2,4-dichloro-5-(4-oxo-2-thioxo-1,4-dihydroquinazolin-3(2H)-yl)phenoxy)acetate CAS 339015-14-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-(2,4-dichloro-5-(4-oxo-2-thioxo-1,4-dihydroquinazolin-3(2H)-yl)phenoxy)acetate.

Ethyl 2-(2,4-dichloro-5-(4-oxo-2-thioxo-1,4-dihydroquinazolin-3(2H)-yl)phenoxy)acetate (CAS 339015-14-4), molecular formula C18H14Cl2N2O4S and molecular weight 425.29 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 2-(2,4-dichloro-5-(4-oxo-2-thioxo-1,4-dihydroquinazolin-3(2H)-yl)phenoxy)acetate (C18H14Cl2N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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