Description

5-(Chlorosulfonyl)-2,4-Dimethylbenzoic Acid is a high-value, multi-functional aromatic sulfonyl chloride derivative used as a key synthetic intermediate. Its core value lies in its dual reactive sites—the chlorosulfonyl group and the carboxylic acid—enabling precise chemical modifications and the construction of complex molecular architectures. This compound is essential for research chemists and process development scientists in the pharmaceutical and agrochemical industries, where it serves as a critical building block for active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of novel herbicides and fungicides, leveraging its aromatic backbone for bioactive molecule design.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for creating sulfonated azo dyes and high-performance pigments with enhanced properties.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for synthesizing specialty polymers, such as polyamides and polyesters with sulfone groups.
• Chemical Research & Development: A versatile reagent for academic and industrial R&D in organic synthesis, particularly in introducing sulfonyl functionalities.
• Liquid Crystal and OLED Material Production: Used in the synthesis of advanced electronic materials requiring specific aromatic sulfone structures.

Basic Information

Product Name	5-(Chlorosulfonyl)-2,4-Dimethylbenzoic Acid
CAS No.	313346-23-5
Molecular Formula	C9H9ClO4S
Molecular Weight	248.68 g/mol
Synonyms	2,4-Dimethyl-5-(chlorosulfonyl)benzoic Acid; 5-Chlorosulfonyl-2,4-dimethylbenzoic Acid; Benzoic acid, 5-(chlorosulfonyl)-2,4-dimethyl-; 2,4-Dimethyl-5-sulfonylchloride Benzoic Acid; 5-(Chlorosulfonyl)-2,4-dimethyl-benzoic acid; 313346-23-5; 2,4-Dimethyl-5-sulfonyl chloride benzoic acid
EINECS	Contact for details

Quality Control

Our production of 5-(Chlorosulfonyl)-2,4-Dimethylbenzoic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and oxidizing agents. Ensure adequate ventilation in the storage area.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details
Heavy Metals	< 10 ppm

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