Dioctyl adipate

Dioctyl adipate (DOA, CAS 123-79-5) is a diester of adipic acid and 2-ethylhexanol, also known as di-n-octyl adipate, octyl adipate, and dicaprylyl adipate. It carries no E-code designation and is classified under HS code 29171200. It belongs to the adipate ester family commonly used across food, cosmetic, and polymer applications.

In flexible PVC and polymer formulations, DOA functions as a low-temperature plasticizer, reducing glass transition temperature and improving cold-crack resistance in films and cables. In personal care, it acts as an emollient by forming a non-occlusive layer on skin, reducing transepidermal water loss without a heavy feel. It also serves as a lubricant base component in metalworking fluids.

DOA is available in food-grade and technical-grade forms, with food applications requiring FCC-compliant material. It falls under REACH regulation (EC 204-652-9) and must be handled with a current safety data sheet. Typical supply formats include bulk liquid tankers and intermediate bulk containers.