4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid CAS 2055841-46-6

Description

The occurrence of 4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid (CAS 2055841-46-6), molecular formula C6H6N2O4S and molecular weight 202.19 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C6H6N2O4S, 4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures 4-Amino-5-(methoxycarbonyl)isothiazole-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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