Definition of heptane in English:


Syllabification: hep·tane
Pronunciation: /ˈhepˌtān


A colorless liquid hydrocarbon of the alkane series, obtained from petroleum.
  • Chemical formula: C7H16; several isomers, especially the straight-chain isomer (n-heptane)
More example sentences
  • They are rated based on their ability to resist knocking against a standard mixture of two hydrocarbons, isooctane and heptane.
  • Stereochemical isomers are also possible with the alkanes, beginning with heptane.
  • The reactants and the catalyst remained in the heptane layer, which was recycled by adding additional acylating agent and fresh aqueous ethanol.


late 19th century: from hepta- 'seven' (denoting seven carbon atoms) + -ane2.

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