Description

Benzenesulfonyl Chloride, 5-Chloro-2-Hydroxy-3-Methyl- is a specialized aromatic sulfonyl chloride derivative, serving as a crucial high-purity synthetic intermediate in advanced organic synthesis. Its unique structure, featuring both a reactive sulfonyl chloride group and a chloro-hydroxy-methyl substituted benzene ring, makes it invaluable for constructing complex molecules. This compound is primarily sought after by pharmaceutical, agrochemical, and specialty chemical research and development teams for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of potential drug candidates, particularly sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and insecticides where the benzenesulfonyl moiety is required.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for producing specialized azo dyes and high-performance pigments.
• Polymer Modification: Employed to introduce sulfonyl chloride functional groups into polymer chains for subsequent cross-linking or grafting reactions.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new organic reactions and material properties.
• Ligand and Catalyst Preparation: Useful for synthesizing complex ligands for metal catalysis or functionalizing solid supports.

Basic Information

Product Name	Benzenesulfonyl Chloride, 5-Chloro-2-Hydroxy-3-Methyl-
CAS No.	1314926-05-0
Molecular Formula	C7H6Cl2O3S
Molecular Weight	241.09 g/mol
Synonyms	5-Chloro-2-hydroxy-3-methylbenzenesulfonyl chloride; 3-Methyl-5-chloro-2-hydroxybenzenesulfonyl chloride; 2-Hydroxy-3-methyl-5-chlorobenzenesulfonyl chloride; 5-Chloro-3-methyl-2-hydroxybenzenesulfonyl chloride; 1-Chloro-3-methyl-6-hydroxy-4-sulfonyl chloride benzene; 4-Chloro-2-methyl-6-(chlorosulfonyl)phenol
EINECS	Contact for details

Quality Control

Our Benzenesulfonyl Chloride, 5-Chloro-2-Hydroxy-3-Methyl- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for critical synthetic applications.

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 tightly sealed under anhydrous conditions. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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