In chemistry, a hydrocarbon containing four carbon atoms with a triple bond between two carbons (an alkyne).
From 'but-' (four carbons) plus '-yne', the chemical suffix indicating a triple bond (versus '-ene' for double bond and '-ane' for single bond).
Butynes are less commonly discussed than butenes, but they're important intermediates in chemical synthesis. The triple bond makes them incredibly reactive for building more complex molecules.
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