Description

2-Oxo-2,3-Dihydro-1H-Benzoimidazole-5-Sulfonyl Chloride is a high-value sulfonyl chloride derivative and a key synthetic intermediate in advanced organic chemistry. This compound is essential for researchers and manufacturers requiring precise functionalization and the introduction of the sulfonamide moiety into complex molecular architectures. It is primarily utilized in the development of active pharmaceutical ingredients (APIs), specialty agrochemicals, and advanced materials.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing novel drug candidates, particularly those targeting enzyme inhibition where the sulfonamide group is pharmacologically active.
• Agrochemical Synthesis: Used in the research and production of modern herbicides, fungicides, and pesticides, leveraging its reactivity to create potent bioactive molecules.
• Dye and Pigment Manufacturing: Serves as a precursor for synthesizing specialized dyes and functional pigments, especially azo dyes and colorants for high-performance applications.
• Polymer Chemistry: Employed to modify polymers and create specialty polymers with specific sulfonated properties for membranes or advanced materials.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating custom chemical libraries.
• Ligand and Catalyst Design: Used to synthesize complex ligands for metal-organic frameworks (MOFs) or catalysts in asymmetric synthesis.

Basic Information

Product Name	2-Oxo-2,3-Dihydro-1H-Benzoimidazole-5-Sulfonyl Chloride
CAS No.	53439-87-5
Molecular Formula	C7H5ClN2O3S
Molecular Weight	232.64 g/mol
Synonyms	5-Sulfamoyl-1H-benzo[d]imidazol-2(3H)-one sulfonyl chloride; 2,3-Dihydro-2-oxo-1H-benzimidazole-5-sulfonyl chloride; 1H-Benzimidazole-5-sulfonyl chloride, 2,3-dihydro-2-oxo-; 2-Oxo-2,3-dihydrobenzimidazole-5-sulfonyl chloride; 5-(Chlorosulfonyl)-2-benzimidazolinone; 2-Oxobenzimidazoline-5-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for high-purity intermediates. Each batch is analyzed using advanced techniques including HPLC, NMR, and IR spectroscopy to confirm identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) are available upon request, providing full transparency and traceability for your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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