Description

5-Chloro-2-Hydroxybenzene-1-Sulfonyl Chloride is a key sulfonyl chloride derivative and versatile chemical intermediate prized for its dual reactive sites. This compound is essential for introducing the sulfonyl functional group into target molecules, enabling the synthesis of more complex structures. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for research and production purposes.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for creating sulfonated dyes and organic pigments.
• Polymer Modification: Employed to introduce sulfonyl groups into polymers, altering their physical and chemical properties.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing sulfones, sulfonamides, and sulfonate esters.
• Liquid Crystal & Electronic Material Precursor: Used in the synthesis of advanced materials for electronic applications.

Basic Information

Product Name	5-Chloro-2-Hydroxybenzene-1-Sulfonyl Chloride
CAS No.	25319-95-3
Molecular Formula	C6H4Cl2O3S
Molecular Weight	227.06 g/mol
Synonyms	5-Chloro-2-hydroxybenzenesulfonyl chloride; 3-Chloro-6-hydroxybenzenesulfonyl chloride; 2-Hydroxy-5-chlorobenzenesulfonyl chloride; 5-Chlorosalicylic acid sulfonyl chloride; 5-Chloro-2-phenolsulfonyl chloride; 5-Chloro-2-hydroxy-1-sulfonyl chloride benzene
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Hydroxybenzene-1-Sulfonyl Chloride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Contact for details

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