2-Methoxy-4-amino-5-mercaptobenzoic Acid CAS 59168-57-9

Description

Compared with other compounds in its class, the molecular weight of 199.23 g/mol gives 2-Methoxy-4-amino-5-mercaptobenzoic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Methoxy-4-amino-5-mercaptobenzoic Acid (CAS 59168-57-9), molecular formula C8H9NO3S and molecular weight 199.23 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H9NO3S, 2-Methoxy-4-amino-5-mercaptobenzoic Acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 199.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 2-Methoxy-4-amino-5-mercaptobenzoic Acid 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.

Physical & Chemical Properties

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