Pentane

  H H H H H
  | | | | |
H-C-C-C-C-C-H
  | | | | |
  H H H H H

  H H H H
  | | | |
H-C-C-C-C-H
  | | | |
  H | H H
  H-C-H
    |
    H

Pen"tane (?), n. [See Penta-.] Chem.

Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.

© Webster 1913.