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