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vinylacetylene

noun
vi·​nyl·​acetylene

Definition of vinylacetylene 

: a sweet-smelling gaseous or low-boiling liquid unsaturated hydrocarbon CH2=CHC≡CH formed by dimerization of acetylene as an intermediate in making chloroprene and neoprene; 1-buten-3-yne

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History and Etymology for vinylacetylene

vinyl + acetylene

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