Dipentaerythritol (Di-PE), identified by CAS 126-58-9, is a high-performance hexa-functional polyol used extensively in the specialty resin and lubricant industries. Appearing as a white, odorless crystalline powder with the chemical formula C10H22O7, Dipentaerythritol is a co-product of pentaerythritol synthesis. It is distinguished by having six primary hydroxyl groups, which provide a higher level of functionality compared to monopentaerythritol. This structural advantage makes Di-PE an essential raw material for the production of dipentaerythritol hexaacrylate (DPHA), high-solids alkyd resins, and complex esters for high-temperature lubrication. Its ability to impart superior durability, heat resistance, and chemical stability makes it a cornerstone of high-end chemical engineering.