Description

4-Chlorobenzylsulfonylacetic Acid is a specialized organic sulfonic acid derivative with a chlorinated benzyl group, serving as a key synthetic intermediate. This compound is valued for its role in constructing more complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and advanced agrochemicals. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for its utility in sulfonylation and derivatization reactions.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those targeting sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other performance chemicals requiring a chlorobenzylsulfonyl moiety.
• Organic Synthesis Research: Employed in academic and industrial laboratories for method development and exploring new reaction pathways involving sulfonic acid derivatives.
• Material Science: Potential monomer or modifier in the synthesis of specialized polymers and functional materials.

Basic Information

Product Name	4-Chlorobenzylsulfonylacetic Acid
CAS No.	118672-20-1
Molecular Formula	C9H9ClO4S
Molecular Weight	248.68 g/mol
Synonyms	4-Chlorobenzylsulfonylacetic Acid; (4-Chlorophenyl)methanesulfonylacetic Acid; 2-[(4-Chlorophenyl)methylsulfonyl]acetic Acid; Acetic acid, 2-[(4-chlorophenyl)methylsulfonyl]-; p-Chlorobenzylsulfonylacetic Acid; 4-Chloro-α-(sulfonylmethyl)benzenemethanol (tautomeric form); 118672-20-1; 4-CBSAA
EINECS	Contact for details

Quality Control

Our production of 4-Chlorobenzylsulfonylacetic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is manufactured and tested in facilities that implement cGMP principles where applicable. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition. For long-term storage, consider an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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