Chem. [f. as prec. + -ENE.] (See quots.)
1868. Watts, Dict. Chem., V. 982. Valylene.… This hydrocarbon is found … among the products of the action of alcoholic potash on dibromide of valerylene.
1868. Fownes’ Chem. (ed. 10), 564. Quintone or Valylene.
