dotricontane

from The Century Dictionary.

• noun A colorless crystalline hydrocarbon, C₃₂H₆₆, of the methane series, prepared by the action of sodium amalgam on cetyliodide and contained in petroleum. It melts at 70.5° C., and boils at 310° C. under 15 millimeters pressure: also called dotriacontane and dicetyl.