Description

Octadecyl 3-Mercaptopropionate is a high-purity organosulfur compound, specifically a long-chain alkyl thioester. This specialty chemical serves as a versatile intermediate and functional additive, valued for its ability to introduce thiol functionality and modify surface properties. It is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product performance through tailored molecular design.

Application

• As a polymer modification agent and chain transfer agent in radical polymerization processes.
• As a key intermediate for the synthesis of specialty surfactants and surface-active agents.
• As a lubricant additive and extreme pressure (EP) agent to improve film strength and reduce wear.
• In the production of adhesion promoters and coupling agents for coatings and composite materials.
• As a building block for pharmaceutical intermediates and fine chemical synthesis.
• For research and development in material science, particularly in creating self-assembled monolayers (SAMs).

Basic Information

Product Name	Octadecyl 3-Mercaptopropionate
CAS No.	31778-15-1
Molecular Formula	C21H42O2S
Molecular Weight	358.63 g/mol
Synonyms	Stearyl 3-Mercaptopropionate; 3-(Octadecylthio)propanoic Acid; n-Octadecyl Mercaptopropionate; 1-Octadecyl 3-Mercaptopropanoate; Stearyl Mercaptopropionate; Octadecyl β-Mercaptopropionate; Propanoic acid, 3-mercapto-, octadecyl ester; Octadecyl thioglycolate propionate
EINECS	250-798-9

Quality Control

Our Octadecyl 3-Mercaptopropionate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and industry standards. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and consistent purity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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