Description

5-Chlorosulphonyl-2,3-Dimethoxybenzoic Acid is a high-purity, multi-functional aromatic building block of significant importance in advanced organic synthesis. Its unique structure, featuring both a reactive chlorosulphonyl group and a carboxylic acid moiety, makes it a versatile intermediate for constructing complex molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs and other therapeutic agents.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Manufacturing: Serves as a building block for creating specialized dyes and functional colorants.
• Material Science Research: Employed in the development of novel polymers, liquid crystals, and other advanced organic materials.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and process chemistry in both academic and industrial R&D settings.
• Custom Synthesis: Used as a starting material for the contract manufacturing of complex, bespoke organic molecules.

Basic Information

Product Name	5-Chlorosulphonyl-2,3-Dimethoxybenzoic Acid
CAS No.	74651-62-0
Molecular Formula	C9H9ClO6S
Molecular Weight	280.68 g/mol
Synonyms	2,3-Dimethoxy-5-(chlorosulfonyl)benzoic Acid; 5-(Chlorosulfonyl)-2,3-dimethoxybenzoic Acid; Benzoic acid, 5-(chlorosulfonyl)-2,3-dimethoxy-; 5-Chlorosulfonyl-2,3-dimethoxybenzoic acid; 2,3-Dimethoxy-5-chlorosulfonylbenzoic acid
EINECS	Contact for details

Quality Control

Our 5-Chlorosulphonyl-2,3-Dimethoxybenzoic Acid 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 synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications 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 place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent decomposition. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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