Description

Propanesulfonic Acid CAS NO 28553-80-2 is a versatile organic sulfonic acid valued for its strong acidity and solubility in organic media. It serves as a key intermediate and catalyst in advanced chemical synthesis, offering superior performance in applications where mineral acids are unsuitable. This compound is essential for manufacturers and R&D facilities in the pharmaceutical, agrochemical, and specialty polymer industries.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Polymerization Catalyst & Monomer: Acts as an acid catalyst in polymerization reactions and can be incorporated as a monomer to create sulfonated polymers with ion-exchange properties.
• Electroplating & Surface Treatment Additive: Employed in electroplating baths and metal surface treatment formulations to improve process stability and finish quality.
• Chemical Synthesis Catalyst: Functions as an efficient, recyclable acid catalyst in various organic transformations, including esterification and alkylation.
• Agrochemical Production: Serves as a building block in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Research & Development: Utilized in academic and industrial labs for method development and novel material synthesis.

Basic Information

Product Name	Propanesulfonic Acid
CAS No.	28553-80-2
Molecular Formula	C₃H₈O₃S
Molecular Weight	124.16 g/mol
Synonyms	1-Propanesulfonic Acid; 3-Sulfopropanoic Acid; Propylsulfonic Acid; PSA; Propionic Acid, 3-Sulfo-; 3-Carboxyethanesulfonic Acid; Hydroxypropylsulfonic Acid (related forms); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Propanesulfonic Acid is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and consistency. Certificates of Analysis (COA) documenting these results are provided with each shipment and are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 15-25°C. Due to its nature as a strong acid/organic solvent, ensure containers are kept upright and sealed to prevent moisture absorption and contamination.

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%
Heavy Metals (as Pb)	≤ 10 ppm

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