Product name: Pentaerythrityl tetraisostearate
CAS: 62125-22-8
Molecular formula: C77H148O8
Molecular weight: 1201.99
Description: Pentaerythrityl tetraisostearate is an elegant emollientm ester, which is a polar, branched chain tretraester with low interfacial tension and high molecular weight,
designed to  impart long-lasting emolliency and low comodogenicity in colour cosmetics.  It is a wonderful alternative too castor oil and provides highly occlusive
skin protection with an appealing high-gloss finish.  It is insoluble in water, ethanol and hydroalcoholic systems.  Pentaerythrityl  tetraisostearate has a high molecular weight with a relatively high viscosity, compared to other esters.  Therefore it has one of the lowest Emollient Skin Spreading Factors available (ESSF = 2.9), as seen in figure 3, and spreads slowly on the skin.  This means that it is not only a highly lubricious emollient, but it also  provides persistent luxurious and cushiony skin feel.  Its low interfacial tension shows that it has a relatively high polarity and is an excellent wetting and dispersing agent for pigments.