Description

1H-Benzoimidazole-2-Sulfonic acid is a versatile sulfonated heterocyclic compound that serves as a key intermediate in advanced organic synthesis. Its unique structure, featuring both an imidazole ring and a sulfonic acid group, makes it valuable for introducing specific functionalities into target molecules. This chemical is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical and agrochemical sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel drug candidates, particularly those targeting enzyme inhibition.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that require a sulfonated benzimidazole core.
• Dye & Pigment Manufacturing: Acts as a precursor for creating specialized dyes and colorants with enhanced solubility and fastness properties.
• Corrosion Inhibitor Formulation: Incorporated into industrial coatings and coolant systems to provide metal surface protection.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Chemical Research & Development: Serves as a versatile reagent in academic and industrial R&D for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	1H-Benzoimidazole-2-Sulfonic Acid
CAS No.	5435-31-4
Molecular Formula	C7H6N2O3S
Molecular Weight	198.20 g/mol
Synonyms	1H-Benzimidazole-2-sulfonic acid; 2-Benzimidazolesulfonic Acid; Benzimidazole-2-sulfonic Acid; 2-Sulfobenzimidazole; 2-Benzimidazolesulphonic Acid; 1H-1,3-Benzodiazole-2-sulfonic acid; 2-(1H-Benzimidazol-2-yl)sulfonic acid
EINECS	226-596-8

Quality Control

Our 1H-Benzoimidazole-2-Sulfonic acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.