己烷
Hexane \Hex"ane\, n. [Gr. "e`x six.] (Chem.)
Any one of five hydrocarbons, {C6H14}, of the paraffin
series. They are colorless, volatile liquids, and are so
called because the molecule has six carbon atoms.
hexane
n : a colorless flammable liquid alkane derived from petroleum
and used as a solvent