Figure 1. Chemical structure of PEG-150 distearate; n = 150

PEG-150 distearate (INCI: PEG-150 Distearate) is defined as the polyethylene glycol (PEG) diester of stearic acid, wherein the PEG has an average degree of polymerization of 150 oxyethylene repeat units1 corresponding to an average molecular weight (MW) of 6,600 g/mol.