Description

1,3-Dimethyl-2-Oxo-2,3-Dihydro-1H-Benzimidazole-5-Sulfonyl Chloride(Saltdata: Free) is a high-purity, reactive sulfonyl chloride derivative essential for advanced organic synthesis. Its primary value lies as a key synthetic intermediate for constructing complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and specialty dyes. This compound is critically needed by research and development chemists and process engineers in the pharmaceutical, agrochemical, and fine chemical industries for introducing the sulfonamide functional group.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel benzimidazole-based drug candidates, including potential protease inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators that incorporate sulfonamide moieties.
• Dye and Pigment Manufacturing: Serves as a reactive intermediate for creating specialized sulfonated dyes and pigments with enhanced properties like solubility and color fastness.
• Material Science Research: Employed in the development of functional polymers and advanced materials where the sulfonyl chloride group enables covalent attachment to other molecules.
• Chemical Biology & Proteomics: Acts as a reagent for labeling or modifying biomolecules, such as proteins or peptides, in research applications.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific molecule construction and scale-up projects.

Basic Information

Item	Details
Product Name	1,3-Dimethyl-2-Oxo-2,3-Dihydro-1H-Benzimidazole-5-Sulfonyl Chloride(Saltdata: Free)
CAS No.	24134-65-4
Molecular Formula	C9H9N2O3SCl
Molecular Weight	260.70 g/mol
Synonyms	5-(Chlorosulfonyl)-1,3-dimethyl-1,3-dihydro-2H-benzimidazol-2-one; 1,3-Dimethyl-2-benzimidazolinone-5-sulfonyl chloride; N,N'-Dimethyl-2-oxobenzimidazoline-5-sulfonyl chloride; 2,3-Dihydro-1,3-dimethyl-2-oxo-1H-benzimidazole-5-sulfonyl chloride; 1H-Benzimidazole-5-sulfonyl chloride, 2,3-dihydro-1,3-dimethyl-2-oxo-; DMBO-SO2Cl; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Every batch of 1,3-Dimethyl-2-Oxo-2,3-Dihydro-1H-Benzimidazole-5-Sulfonyl Chloride undergoes rigorous analytical testing to ensure it meets stringent purity and consistency standards suitable for research and GMP-grade synthesis. Our quality assurance protocols include advanced chromatographic and spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your regulatory and R&D documentation.

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 (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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