Description

2-Chlorobenzenesulfonyl Isocyanate is a versatile and highly reactive chemical building block used in the synthesis of sulfonylurea derivatives and other specialized compounds. Its core value lies in its ability to introduce both the sulfonyl and isocyanate functional groups in a single step, enabling efficient construction of complex molecular architectures. This reagent is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it serves as a key intermediate for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of sulfonylurea-based drugs, including certain classes of antidiabetic and diuretic agents.
• Agrochemical Synthesis: Used in the production of modern herbicides and pesticides that rely on sulfonylurea chemistry for their selective action.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialized polymers with unique thermal or chemical resistance properties.
• Organic Synthesis Reagent: Employed in research laboratories for the preparation of sulfonamides, carbamates, and ureas through reactions with amines and alcohols.
• Material Science: Potential use in surface modification and the development of advanced coatings and adhesives.

Basic Information

Product Name	2-Chlorobenzenesulfonyl Isocyanate
CAS No.	64900-65-8
Molecular Formula	C7H4ClNO3S
Molecular Weight	217.63 g/mol
Synonyms	o-Chlorobenzenesulfonyl Isocyanate; 2-Chlorobenzene-1-sulfonyl Isocyanate; Benzenesulfonyl Isocyanate, 2-chloro-; 1-Chloro-2-isocyanatosulfonylbenzene; 2-Chlorophenylsulfonyl Isocyanate; (2-Chlorophenyl)sulfonyl Isocyanate; 2-Chlorobenzenesulphonyl Isocyanate
EINECS	Contact for details

Quality Control

Our 2-Chlorobenzenesulfonyl Isocyanate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay by titration and impurity profiling, to ensure it meets the high-purity standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and specific impurity limits are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from moisture, heat, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %

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