IPA: //ˈhɛp.teɪn//
KK: /ˈhɛpˌteɪn/
A colorless and flammable liquid made of hydrocarbons, commonly found in petroleum, used for various purposes including as a solvent and in measuring octane ratings.
Heptane is often used in laboratories as a solvent for chemical reactions.
Heptane is formed from "hepta-" (from Greek "hepta", meaning seven) and "-ane" (a suffix used in organic chemistry to denote saturated hydrocarbons). The word "heptane" refers to a saturated hydrocarbon with seven carbon atoms in its molecular structure.
Think of 'hepta-' meaning seven, which helps you remember that heptane is a hydrocarbon with seven carbon atoms.