pentaerythritol propoxylate (5/4 PO/OH)
pentaerythritol propoxylate (5/4 po/oh)
A hydroxypolyether in which a hydroxy-poly(propylene oxide) chain is connected to each of the methyl groups of neopentane. It is commonly used to crystallise proteins. In the diagram, a + b + c + d ~ 5.