144060-67-3 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarboxylic acid ethyl ester 5-thiazolecarboxylic acid,2-(4-hydroxy-3-nitrophenyl)-4-methyl-,ethyl ester Ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methylthiazole-5-carboxylate ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarbonate CAS 144060-67-3

Description

The occurrence of 144060-67-3 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarboxylic acid ethyl ester 5-thiazolecarboxylic acid,2-(4-hydroxy-3-nitrophenyl)-4-methyl-,ethyl ester Ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methylthiazole-5-carboxylate ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarbonate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

144060-67-3 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarboxylic acid ethyl ester 5-thiazolecarboxylic acid,2-(4-hydroxy-3-nitrophenyl)-4-methyl-,ethyl ester Ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methylthiazole-5-carboxylate ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarbonate (CAS 144060-67-3) is a high-purity analytical reference standard with the molecular formula C13H12N2O5S and a molecular weight of 308.31 g/mol.

144060-67-3 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarboxylic acid ethyl ester 5-thiazolecarboxylic acid,2-(4-hydroxy-3-nitrophenyl)-4-methyl-,ethyl ester Ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methylthiazole-5-carboxylate ethyl 2-(4-hydroxy-3-nitrophenyl)-4-methyl-5-thiazolecarbonate (C13H12N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.

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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