Description

4-Chloro-3-Nitrobenzenesulfonyl Chloride is a key sulfonyl chloride derivative and versatile chemical intermediate. Its reactive sulfonyl chloride group makes it a critical building block for synthesizing more complex sulfonamides and sulfonate esters. This compound is essential for research and industrial chemists in the pharmaceutical and agrochemical sectors who require a reliable, high-purity precursor for advanced synthesis. Its specific substitution pattern offers unique reactivity for targeted molecular construction.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the sulfonyl moiety imparts biological activity.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for creating sulfonated dyes and specialty colorants.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialty polymers and resins.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new synthetic pathways and creating novel sulfonated compounds.
• Liquid Crystal and Electronic Material Production: Used in the synthesis of advanced materials for display and semiconductor applications.

Basic Information

Product Name	4-Chloro-3-Nitrobenzenesulfonyl Chloride
CAS No.	97-08-5
Molecular Formula	C6H3Cl2NO4S
Molecular Weight	256.06 g/mol
Synonyms	4-Chloro-3-nitrobenzenesulfonyl chloride; 3-Nitro-4-chlorobenzenesulfonyl chloride; 1-Chloro-4-(chlorosulfonyl)-2-nitrobenzene; Benzenesulfonyl chloride, 4-chloro-3-nitro-; 4-Chloro-3-nitrobenzene-1-sulfonyl chloride; NSC 403107; 2-Nitro-4-chlorobenzenesulfonyl chloride
EINECS	202-558-7

Quality Control

Our 4-Chloro-3-Nitrobenzenesulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed in a dry environment to prevent hydrolysis. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	64 - 68 °C
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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