1-Dodecanethiol

　　Main Applications

　　The core function of 1-Dodecanethiol is closely related to the hydrophobicity of its long-chain alkyl group and the reactivity of its thiol group. It is primarily applied in the following fields:

　　Polymer Synthesis Industry

　　As a chain transfer agent: In free-radical polymerization reactions (such as the polymerization of monomers like styrene, acrylonitrile, and vinyl chloride), it controls the molecular weight of the polymer through the chain transfer action of the thiol group, regulates product viscosity and molecular weight distribution, and makes the polymer molecular weight more uniform. For example, in the synthesis of styrene-butadiene rubber (SBR), adding 1-Dodecanethiol can reduce the molecular weight of the rubber and improve its processing performance.

　　Metal Surface Treatment

　　Used as a metal corrosion inhibitor: The thiol group can adsorb onto the surface of metals (such as copper and silver), forming a protective film that prevents the metal from being corroded or oxidized. It is often used in metalworking fluids and rust inhibitors.

　　Preparation of Self-Assembled Monolayers (SAMs): On the surfaces of precious metals like gold and silver, dodecanethiol spontaneously assembles into an ordered monolayer via Au-S bonds, used for modifying electrodes and sensor surfaces, or for preparing superhydrophobic materials.

　　Pharmaceuticals and Fine Chemicals

　　As an organic synthesis intermediate: Used to synthesize sulfide compounds, drug molecules, or pesticide intermediates. For example, the long-chain alkyl group is introduced via the reaction of the thiol group to adjust the lipophilicity of the target molecule.

　　Other Fields

　　Lubricant additives: Improve the extreme pressure performance and oxidation resistance of lubricating oils.

　　Cosmetic raw materials: Used in small amounts as conditioning agents, utilizing their hydrophobicity to improve the skin feel or stability of the product (odor needs to be controlled).

CAS NO: 112-55-0;1322-36-7

EC NO: 203-984-1;215-338-6

Molecular Formula: C₁₂H₂₆S

Molecular Weight: 202.3998

Aliases: ;1-Dodecanethiol;n-Dodecanethiol;n-Dodecyl mercaptan;1-Dodecyl mercaptan;Dodecyl mercaptan;Lauryl mercaptan;n-Lauryl mercaptan;1-Dodecanethiol;

Structural Formula: