Dodecenylsuccinic acid

Dodecenylsuccinic acid (CAS 29658-97-7, EC 249-757-0), also known commercially as T 746 and Dodecene Succinic Acid, is a dicarboxylic acid derivative produced by reacting dodecene with maleic anhydride. It carries no assigned E-code and belongs to the organic acids category with the molecular formula C16H28O4.

In coatings and metalworking fluids, dodecenylsuccinic acid functions as a corrosion inhibitor by adsorbing onto metal surfaces through its carboxyl groups, forming a protective barrier against oxidation. In polymer and adhesive formulations, its bifunctional acid structure enables cross-linking reactions and acts as a plasticizing intermediate, improving flexibility and adhesion in finished systems.

Dodecenylsuccinic acid is supplied in industrial grades and is subject to REACH registration requirements for European procurement. Buyers should confirm supplier documentation including Safety Data Sheets and certificates of analysis. Packaging formats typically follow standard bulk liquid or solid conventions depending on the specific grade supplied.