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Other Specialized Reagents

4-Chloro-3-(chlorosulfonyl)benzoic Acid

Category:

Other Specialized Reagents

CAS NO:

2494-79-3

Standard:

In-house Standards,

Price Range:

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Main Sales Markets:

North America,Central/South America,Western Europe,Eastern Europe,Asia

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Capot Chemical Co., Ltd.

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Basic Info

CAS Number

2494-79-3

Pharmacopoeia

In-house Standards

Grade

pharmaceutical grade

Is Manufacturer

YES

Packaging & Delivery

Packaging Specification

1kg、5kg、25kg

Product Description

4-Chloro-3-(chlorosulfonyl)benzoic Acid、2494-79-3

AI Product Description

*The following content is generated by AI and is for reference only.

4-Chloro-3-(chlorosulfonyl)benzoic acid is a specialized organic intermediate widely utilized in the fine chemical and pharmaceutical industries. Its molecular formula is C7H4Cl2O4S, and it is identified by the CAS number 106859-43-4. This compound features a benzene ring substituted with three distinct functional groups: a carboxylic acid moiety at the first position, a chlorine atom at the fourth position, and a highly reactive chlorosulfonyl group at the third position. The presence of these specific substituents endows the molecule with unique reactivity profiles, making it an invaluable building block for complex synthesis. The primary application of 4-chloro-3-(chlorosulfonyl)benzoic acid lies in the production of sulfa drugs and various sulfonamide derivatives. The chlorosulfonyl group (-SO2Cl) is particularly potent as an electrophilic center, allowing for efficient nucleophilic substitution reactions to form sulfonamides, sulfones, or sulfonic esters. When reacted with amines, it readily yields corresponding sulfonamide structures, which are fundamental components in many antibiotics and diuretics. Furthermore, the co-existing carboxylic acid group offers additional synthetic versatility, enabling the formation of amides, esters, or acid chlorides depending on the desired final product structure. In materials science, this intermediate serves as a precursor for synthesizing high-performance polymers and dyes. The rigid aromatic core combined with polar functional groups contributes to thermal stability and solubility characteristics required for advanced material applications. Due to the dual reactivity of its functional groups, chemists can perform sequential modifications to construct multi-functionalized molecules with high precision. However, handling this substance requires strict safety protocols, as the chlorosulfonyl group reacts vigorously with moisture, releasing corrosive hydrogen chloride gas. Proper storage in dry, inert atmospheres is essential to maintain purity and prevent decomposition. Overall, 4-chloro-3-(chlorosulfonyl)benzoic acid remains a critical reagent in the development of novel therapeutic agents and functional organic materials, bridging the gap between simple aromatic compounds and sophisticated bioactive molecules.