5-Chloro-1H-benzo[d]imidazole-2-sulfonyl chloride CAS 251921-01-4

Description

The occurrence of 5-Chloro-1H-benzo[d]imidazole-2-sulfonyl chloride is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-Chloro-1H-benzo[d]imidazole-2-sulfonyl chloride (CAS 251921-01-4), molecular formula C7H4Cl2N2O2S and molecular weight 251.09 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H4Cl2N2O2S, 5-Chloro-1H-benzo[d]imidazole-2-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.09 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.

CATO manufactures 5-Chloro-1H-benzo[d]imidazole-2-sulfonyl chloride 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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