Isostearyl isostearate

Isostearyl isostearate (CAS 41669-30-1, EC 255-485-3) is a branched-chain ester derived from isostearic acid and isostearyl alcohol, with the molecular formula C36H72O2. It carries no E-code designation and is commercially available under trade names including Pelemol II, Crodamol ISIS, Prisorine 2039, Schercemol 1818, and Coster 5088.

In personal care formulations, it functions as an emollient and plasticizer in lipsticks, foundations, and skin creams, where its branched structure resists crystallisation and improves spreadability without a greasy skin feel. In metalworking and industrial lubricant applications, it provides film-forming lubrication and acts as a carrier for active additives due to its chemical stability under mechanical stress.

Isostearyl isostearate is supplied in compliance with REACH regulations and is available in cosmetic-grade quality suitable for personal care applications. Procurement quantities typically range from drum to IBC formats. Buyers should confirm grade specifications and documentation requirements directly with the supplier.