2,2,4,6,6-Pentamethyl-3-heptene, also known as diisobutylene, is a branched-chain hydrocarbon with the molecular formula C11H22. This colorless liquid exhibits excellent chemical stability and is widely utilized as a versatile intermediate in the synthesis of various specialty chemicals, including lubricant additives, plasticizers, and fuel additives. Its unique molecular structure imparts desirable properties to end products, making it an essential component in numerous industrial applications. 2,2,4,6,6-Pentamethyl-3-heptene’s multifaceted utility positions it as a key building block in the production of diverse compounds across different sectors.