[化] 庚烷

[医] 庚烷

[ noun ]
a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratings
<noun.substance>

Heptane \Hep"tane\, n. [Gr. "epta` seven.] (Chem.)
Any one of several isometric hydrocarbons, {C7H16}, of the
paraffin series (nine are possible, four are known); -- so
called because the molecule has seven carbon atoms.
Specifically, a colorless liquid, found as a constituent of
petroleum, in the tar oil of cannel coal, etc.