Description

[4-(Chlorosulfonyl)Phenyl]Acetic acid is a versatile and high-purity chemical intermediate characterized by its reactive chlorosulfonyl and carboxylic acid functional groups. This compound is critical for the synthesis of more complex molecules, offering a reliable building block for advanced research and industrial manufacturing. It is primarily sought after by pharmaceutical, agrochemical, and specialty chemical industries for applications in drug discovery, crop protection, and material science.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dyestuff and Pigment Manufacturing: Serves as a building block for creating sulfonated dyes and high-performance pigments.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for enhanced properties.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecular architectures in R&D labs.
• Liquid Crystal and OLED Material Production: Used in the synthesis of specialized electronic and display materials.

Basic Information

Product Name	[4-(Chlorosulfonyl)Phenyl]Acetic acid
CAS No.	22958-99-2
Molecular Formula	C8H7ClO4S
Molecular Weight	234.66 g/mol
Synonyms	4-(Chlorosulfonyl)phenylacetic acid; (4-Chlorosulfonylphenyl)acetic acid; 2-[4-(Chlorosulfonyl)phenyl]acetic acid; p-(Chlorosulfonyl)phenylacetic acid; 4-Carboxymethylbenzenesulfonyl chloride; NSC 403796; Benzenesulfonyl chloride, 4-(carboxymethyl)-
EINECS	Contact for details

Quality Control

Our [4-(Chlorosulfonyl)Phenyl]Acetic acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee compliance with your research or production specifications.

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). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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