The Collaborative International Dictionary
heptene
Heptylene \Hep"tyl*ene\, n. (Chem.) A colorless liquid hydrocarbon, C7H14, of the ethylene series; also, any one of its isomers. Called also heptene.
Wiktionary
heptene
n. (context organic compound English) Any of many isomers of the alkene having seven carbon atoms and one double bond; a mixture of such isomers used in lubricants etc
Wikipedia
Heptene
Heptene is a higher olefin, or alkene with the formula CH. The commercial product is a liquid that is a mixture of isomers. It is used as an additive in lubricants, as a catalyst, and as a surfactant. This chemical is also known as heptylene.
Usage examples of "heptene".
Aussie mozzie repellents include delightful ingredients like diethyl toluamide and bicyclo heptene dicarboximide.