Several isomers of octene are known, depending on the position and the geometry of the double bond in the carbon chain.
The simplest isomer is 1-octene, an alpha-olefin used primarily as a co-monomer in production of polyethylene via the solution polymerization process.
Several useful structural isomers of the octenes are obtained by dimerization of isobutene and 1-butene.
These branched alkenes are used to alkylate phenols to give precursors to detergents.
[1] The dimerisation of isobutane generates diisobutenes This article about a hydrocarbon is a stub.