3,3'-[[2,2-bis[(allyloxy)methyl]-1,3-propanediyl]bis(oxy)]dipropene

3,3'-[[2,2-bis[(allyloxy)methyl]-1,3-propanediyl]bis(oxy)]dipropene is also known as Tetraallyl Pentaerythritol Ether. It can be added to lubricating oil to improve its viscosity index (i.e., to reduce temperature effects).