Diisopropyl adipate

Diisopropyl adipate (DIPA) is a diester solvent produced from adipic acid and isopropanol, registered under CAS 6938-94-9 and EC 230-072-0. It carries no E-code designation and is commercially available under trade names including Nikkol DID, Ceraphyl 230, and Betadia.

In personal care formulations, DIPA functions as a non-greasy emollient carrier that reduces the viscosity of pigment dispersions and improves spreadability in colour cosmetics and skin creams. In polymer processing, it acts as a secondary plasticizer, lowering the glass transition temperature of PVC and similar resins to improve flexibility at low temperatures.

DIPA is supplied as a technical or cosmetic-grade clear liquid, with cosmetic grades typically conforming to REACH registration requirements and meeting supplier-specific purity specifications. Standard packaging includes drums and IBCs. Buyers should confirm grade suitability against relevant regional cosmetic regulations before formulation.