Description

1-Propanesulfonic Acid is a versatile organosulfonic acid widely utilized as a key intermediate and catalyst in advanced chemical synthesis. Its strong acidity and solubility in organic solvents make it a valuable reagent for introducing sulfonic acid groups and facilitating various acid-catalyzed reactions. This compound is essential for manufacturers and researchers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable building blocks for sulfonate derivatives and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly for creating sulfonamide and sulfonate ester derivatives.
• Catalyst & Reagent: Employed as an efficient acid catalyst in organic synthesis, esterification, and polymerization reactions due to its strong Bronsted acidity.
• Electroplating & Surface Treatment: Used in electroplating baths and surface modification processes to improve adhesion and corrosion resistance on metal substrates.
• Polymer & Resin Modification: Serves as a monomer or modifying agent to introduce sulfonic acid functionality into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Chemical Research & Development: A valuable reagent in laboratory-scale R&D for exploring new synthetic pathways and creating novel sulfonated compounds.
• Agrochemical Synthesis: Used in the production of certain herbicides, fungicides, and other crop protection agents that incorporate sulfonic acid moieties.

Basic Information

Product Name	1-Propanesulfonic Acid
CAS No.	5284-66-2
Molecular Formula	C3H8O3S
Molecular Weight	124.16 g/mol
Synonyms	Propane-1-sulfonic Acid; 1-Propylsulfonic Acid; Propanesulfonic Acid; n-Propylsulfonic Acid; PSA; 3-Sulfopropanoic Acid (tautomer); 1-Propanesulphonic Acid; Propylsulfonic Acid
EINECS	226-104-7

Quality Control

Our 1-Propanesulfonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (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.