Description

2,3,4-Trichlorobenzenesulfonyl Chloride is a versatile and highly reactive organosulfur compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its dual functionality, acting as a key sulfonylation reagent and a precursor for more complex sulfonamide derivatives. This intermediate is essential for research and development chemists and process engineers working in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to introduce the trichlorophenylsulfonyl moiety into target molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the trichlorophenyl group can enhance biological activity and stability.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for sulfonated dyes and pigments, contributing to color fastness and solubility properties.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains, altering physical properties for specialty plastics and coatings.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecular architectures in academic and industrial R&D settings.
• Ligand and Catalyst Preparation: Used to synthesize specialized ligands and catalysts for asymmetric synthesis and other catalytic processes.

Basic Information

Product Name	2,3,4-Trichlorobenzenesulfonyl Chloride
CAS No.	34732-09-7
Molecular Formula	C6H2Cl4O2S
Molecular Weight	279.95 g/mol
Synonyms	2,3,4-Trichlorobenzene-1-sulfonyl chloride; 1,2,3-Trichloro-4-sulfonylchlorobenzene; Benzenesulfonyl chloride, 2,3,4-trichloro-; 2,3,4-Trichlorophenylsulfonyl chloride; NSC 163081; 2,3,4-Trichlorobenzenesulphonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 2,3,4-Trichlorobenzenesulfonyl Chloride undergoes rigorous analytical testing to ensure it meets the high-purity standards required for synthetic applications. Our quality assurance protocol includes advanced chromatographic and spectroscopic methods to verify identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, amines, and alcohols. Due to its reactivity as a strong acid/organic solvent, it should be handled with appropriate precautions. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%

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