Description

3,4-Difluoro-Benzenesulfonic Acid is a high-purity, functionalized benzenesulfonic acid derivative. This compound serves as a versatile and critical building block in advanced organic synthesis, particularly for introducing the sulfonic acid moiety into complex molecular architectures. It is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing new active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key synthon for the development of active pharmaceutical ingredients (APIs), especially in sulfonamide-based drugs.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and insecticides with enhanced properties.
• Ligand and Catalyst Preparation: Serves as a precursor for sulfonated ligands used in catalysis and metal-organic frameworks (MOFs).
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers for ion-exchange membranes or specialty materials.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of sulfonated dyes and functional colorants.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and material science research programs.

Basic Information

Item	Details
Product Name	3,4-Difluoro-Benzenesulfonic Acid
CAS No.	1185115-56-3
Molecular Formula	C6H4F2O3S
Molecular Weight	194.16 g/mol
Synonyms	3,4-Difluorobenzenesulfonic Acid; 1,2-Difluoro-4-sulfobenzene; Benzenesulfonic acid, 3,4-difluoro-; 3,4-DFBSA; 3,4-Difluorophenylsulfonic Acid
EINECS	Contact for details

Quality Control

Our 3,4-Difluoro-Benzenesulfonic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic and strong acid nature, the container must be kept tightly sealed in a dry environment and handled with appropriate precautions to avoid moisture absorption and corrosion.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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