Dioctyl succinate

Dioctyl succinate (CAS 14491-66-8), also known as dicapryl succinate, is a diester of succinic acid used across industrial formulations as a plasticizer, lubricant, and carrier solvent. It functions by improving flexibility, reducing friction, or enhancing the solvency of finished formulations depending on the application context. In plastics and polymer processing, it acts as a plasticizer.

This material is used to improve flexibility and workability in PVC and similar resin systems. Coatings and adhesive formulators incorporate it as a carrier solvent or softening agent to adjust viscosity. These adjustments are made to film properties without compromising adhesion performance. In lubricant and metalworking fluid formulations, it contributes lubricity and helps reduce wear at metal contact surfaces.

Automotive applications include its use in specialty lubricants and sealant compounds where ester-based fluids are preferred for thermal stability and compatibility with elastomeric components. Dioctyl succinate is supplied as a clear liquid. It is available in technical grade, suited to industrial plastics, lubricant, and coatings applications. Packaging typically ranges from drums to IBC totes.

Bulk quantities are available depending on supplier requirements. This versatile chemical intermediate serves as a reliable component for manufacturers seeking high-performance ester-based solutions.