What is "phenylacetylene"

n. (context organic chemistry English) An alkyne hydrocarbon containing a phenyl group, sometimes used as an analogue for acetylene in scientific research.

Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.