Imidazole-1-sulfonic Acid CAS 21108-81-6

Description

The occurrence of Imidazole-1-sulfonic Acid is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Imidazole-1-sulfonic Acid (CAS 21108-81-6) is a high-purity analytical reference standard with the molecular formula C3H4N2O3S and a molecular weight of 148.14 g/mol.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Imidazole-1-sulfonic Acid is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Imidazole-1-sulfonic 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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