found: MeSH browser, Jan. 17, 2018(Heptanes. Scope Note: Seven-carbon alkanes with the formula C7H16. Entry Term (UF): Isoheptanes. Previous Indexing: Alkanes (1966-1977); Hydrocarbons (1966-1977). In MeSH tree structure under Alkanes)
found: Merriam-Webster dictionary online, Jan. 17, 2018(heptane: any of several isomeric alkanes C₇H₁₆; especially : the liquid normal isomer occurring in petroleum and used especially as a solvent and in determining octane numbers)
found: Collins English dictionary online, Jan. 17, 2018(heptane: an alkane existing in nine isomeric forms, esp the isomer with a straight chain of carbon atoms (n-heptane), which is found in petroleum and used as an anaesthetic. Formula: C₇H₁₆)
