Methyl 4-Amino-3-(4-chlorophenyl)isothiazole-5-carboxylate CAS 82424-59-7

Description

As a certified reference material (CRM), Methyl 4-Amino-3-(4-chlorophenyl)isothiazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Methyl 4-Amino-3-(4-chlorophenyl)isothiazole-5-carboxylate (CAS 82424-59-7) is a high-purity analytical reference standard with the molecular formula C11H9ClN2O2S and a molecular weight of 268.72 g/mol.

Methyl 4-Amino-3-(4-chlorophenyl)isothiazole-5-carboxylate (C11H9ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, 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, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.

Physical & Chemical Properties

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