Description

2-Ethylhexyl 3-Mercaptopropionate is a specialized organosulfur compound widely used as a chain transfer agent and intermediate in polymer synthesis. Its primary value lies in its ability to precisely control polymer molecular weight and architecture, enabling the production of materials with tailored properties. This product is essential for manufacturers in the polymer, adhesive, and specialty chemical industries seeking to optimize their formulations for performance and consistency.

Application

• Chain Transfer Agent (CTA) in Free Radical Polymerization: Used to control molecular weight and polydispersity in the production of acrylics, styrenics, and other polymers.
• Intermediate for Thiol-Functionalized Polymers: Serves as a key building block for synthesizing polymers with terminal or pendant thiol groups for further modification.
• Adhesive and Sealant Formulations: Imparts specific rheological and curing characteristics in high-performance adhesives and sealants.
• Crosslinking Agent: Utilized in systems requiring controlled crosslinking to enhance thermal stability and mechanical strength.
• Surface Modifier: Employed to introduce specific surface functionalities on polymers or particles.
• Lubricant and Fuel Additive Intermediate: Acts as a precursor in the synthesis of extreme pressure additives and anti-wear agents.

Basic Information

Product Name	2-Ethylhexyl 3-Mercaptopropionate
CAS No.	50448-95-8
Molecular Formula	C11H22O2S
Molecular Weight	218.36 g/mol
Synonyms	3-Mercaptopropionic Acid 2-Ethylhexyl Ester; 2-Ethylhexyl 3-Mercaptopropanoate; Octyl 3-Mercaptopropionate; 3-Mercaptopropionic Acid Octyl Ester; 2-Ethylhexyl Mercaptopropionate; 2-EHMP; EHMP; Thiol Ester CTA; Chain Transfer Agent EHMP
EINECS	256-574-1

Quality Control

Our 2-Ethylhexyl 3-Mercaptopropionate is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot is analyzed to meet precise specifications for purity, identity, and performance as a chain transfer agent. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to support your quality assurance protocols.

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, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or equivalent light-blocking material until use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	0.950 - 0.970
Refractive Index (20°C)	1.460 - 1.470
Water Content (KF)	≤ 0.1%

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