valylene

Century Dictionary and Cyclopedia

1. n. A colorless, oily compound, prepared by the action of alcoholic potassium hydroxid on valerylenedibromide. It has an odor of garlic and boils at 50° C.

Wiktionary

1. n. organic chemistry The organic compound 2-methylbut-1-en-3-yne HC≡C-C(CH3)=CH2

GNU Webster's 1913

1. n. (Chem.) A volatile liquid hydrocarbon, C5H6, related to ethylene and acetylene, but possessing the property of unsaturation in the third degree. It is the only known member of a distinct series of compounds. It has a garlic odor.