Description

Octyl 3-Mercaptopropionate is a specialized organosulfur compound widely used as a chain transfer agent and intermediate in polymer synthesis. Its unique structure provides excellent control over molecular weight and polymer architecture, making it a critical component for producing high-performance materials. This product is essential for manufacturers in the polymer, adhesive, and specialty chemical industries seeking to fine-tune material properties and enhance production efficiency.

Application

• As a chain transfer agent (CTA) in the free-radical polymerization of acrylics, styrenics, and vinyl monomers to control molecular weight and polydispersity.
• Key intermediate in the synthesis of functional polymers and surface modifiers for coatings and adhesives.
• Used in the production of UV-curable resins and ink formulations to improve flexibility and adhesion properties.
• Employed in rubber processing and as a precursor for specialty chemicals requiring a thiol functional group.
• Acts as a crosslinking agent or modifier in the manufacture of sealants and elastomers.
• Potential use as a scent precursor or intermediate in the fragrance and flavor industry.
• Research and development applications in material science for creating novel polymers with tailored properties.

Basic Information

Product Name	Octyl 3-Mercaptopropionate
CAS No.	71849-93-9
Molecular Formula	C11H22O2S
Molecular Weight	218.36 g/mol
Synonyms	3-Mercaptopropionic Acid Octyl Ester; Octyl 3-Mercaptopropanoate; n-Octyl 3-Mercaptopropionate; Octyl β-Mercaptopropionate; 3-(Octyloxy)-3-oxopropane-1-thiol; Mercaptopropionic Acid Octyl Ester; 1-Octyl 3-Mercaptopropionate
EINECS	Contact for details

Quality Control

Our Octyl 3-Mercaptopropionate is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

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). Keep away from heat, sparks, open flames, and strong oxidizing agents. Due to its light-sensitive nature, containers should be kept in the original packaging or an opaque secondary container.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	0.950 - 0.980
Refractive Index (20°C)	1.460 - 1.470
Water Content (KF)	≤ 0.2%

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