Description

3-(Difluoromethylsulfonyl)Benzoic Acid is a high-purity, multi-functional aromatic building block containing both a difluoromethylsulfonyl group and a carboxylic acid moiety. This unique bifunctional structure makes it a valuable intermediate for synthesizing advanced materials and active pharmaceutical ingredients (APIs) where specific electronic and steric properties are required. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel compounds.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry for introducing the difluoromethylsulfonyl pharmacophore.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and pesticides, leveraging its bioisosteric properties.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands in transition metal catalysis and organocatalysis.
• Material Science: Intermediate for the production of specialty polymers, liquid crystals, and organic electronic materials due to its aromatic core and polar functional groups.
• Custom Synthesis and R&D: Employed in contract research organizations (CROs) and academic labs for exploratory chemistry and process development.

Basic Information

Product Name	3-(Difluoromethylsulfonyl)Benzoic Acid
CAS No.	4837-21-2
Molecular Formula	C8H6F2O4S
Molecular Weight	236.19 g/mol
Synonyms	3-[(Difluoromethyl)sulfonyl]benzoic acid; Benzoic acid, 3-[(difluoromethyl)sulfonyl]-; 3-(Difluoromethanesulfonyl)benzoic acid; α,α-Difluoro-m-sulfobenzoic acid; m-Carboxy-α,α-difluorobenzenesulfinic acid methyl ester; DFMSBA; 3-DFMS-BA
EINECS	Contact for details

Quality Control

Our production of 3-(Difluoromethylsulfonyl)Benzoic Acid adheres to stringent in-process controls and final batch analysis to ensure consistent high quality and purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support compliance with cGMP guidelines where applicable for pharmaceutical intermediates and ensure traceability for all materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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