Description

Thiopropionic Acid S-Isopropyl Ester is a specialized organosulfur compound, CAS NO 2432-47-5, valued for its role as a versatile intermediate and chain transfer agent in polymer synthesis. Its chemical structure makes it a critical component for modifying polymer properties and introducing specific functionalities. This product is essential for manufacturers in the polymer, rubber, and specialty chemical industries seeking to fine-tune molecular weight and enhance material performance.

Application

• Polymer Industry: Acts as an effective chain transfer agent (CTA) in free-radical polymerization processes to control molecular weight and polydispersity.
• Rubber Manufacturing: Used in the production and modification of synthetic rubbers to improve processability and final product characteristics.
• Specialty Chemical Synthesis: Serves as a key intermediate for synthesizing more complex sulfur-containing compounds, including certain pharmaceuticals and agrochemicals.
• Lubricant & Fuel Additives: Employed in the formulation of extreme pressure additives and antioxidants for industrial lubricants and fuels.
• Adhesive & Sealant Production: Utilized to modify acrylic and other polymer-based adhesives, enhancing their flexibility and adhesion properties.

Basic Information

Product Name	Thiopropionic Acid S-Isopropyl Ester
CAS No.	2432-47-5
Molecular Formula	C6H12O2S
Molecular Weight	148.22 g/mol
Synonyms	S-Isopropyl 3-mercaptopropionate; Isopropyl 3-mercaptopropionate; 3-Mercaptopropionic Acid S-Isopropyl Ester; Isopropyl β-mercaptopropionate; Isopropyl 3-sulfanylpropanoate; Propanoic acid, 3-mercapto-, S-isopropyl ester; Chain Transfer Agent CTA; Thiopropionate ester
EINECS	219-399-4

Quality Control

Our Thiopropionic Acid S-Isopropyl Ester is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure it meets precise purity and compositional standards. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). This product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain stability and purity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.460 - 1.470
Density (20°C)	1.020 - 1.050 g/mL
Water Content (KF)	≤ 0.5%

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