Description

Pentafluorobenzenesulfonicacid CAS NO 313-50-8 is a highly fluorinated aromatic sulfonic acid derivative, serving as a versatile and powerful building block in advanced chemical synthesis. Its unique structure, featuring a perfluorinated benzene ring, imparts exceptional acidity and stability, making it a critical reagent for introducing sulfonate groups under demanding conditions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors, particularly for creating novel active ingredients, catalysts, and high-performance polymers.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), especially in the development of sulfonamide-based drugs and other bioactive molecules.
• Catalyst & Ligand Precursor: Used to prepare strong acid catalysts and specialized ligands for transition metal catalysis in fine chemical production.
• Agrochemical Synthesis: Intermediate in the manufacture of advanced herbicides, fungicides, and insecticides that benefit from the stability of the pentafluorophenyl group.
• Polymer & Material Science: Monomer or modifier for creating high-performance polymers, ion-exchange resins, and specialty coatings with enhanced chemical and thermal resistance.
• Electrolyte Additive: Investigated for use in lithium-ion battery electrolytes to improve stability and performance at high voltages.
• Derivatization Agent: Employed in analytical chemistry for derivatizing compounds to improve their detection in chromatographic techniques like HPLC and LC-MS.

Basic Information

Product Name	Pentafluorobenzenesulfonic Acid
CAS No.	313-50-8
Molecular Formula	C6HF5O3S
Molecular Weight	248.13 g/mol
Synonyms	Pentafluorobenzenesulfonic Acid; Perfluorobenzenesulfonic Acid; Benzenesulfonic Acid, Pentafluoro-; 2,3,4,5,6-Pentafluorobenzenesulfonic Acid; Pentafluorophenylsulfonic Acid; PFBSA; PFBS Acid; C6F5SO3H
EINECS	206-235-6

Quality Control

Our Pentafluorobenzenesulfonic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming identity, assay, and impurity profiles. Our quality system is designed to meet the stringent requirements of GMP and ISO standards for advanced chemical intermediates.

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). This product is hygroscopic (moisture-sensitive) and a strong acid; ensure containers are sealed tightly after use to prevent absorption of atmospheric moisture and corrosion. 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)	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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