Keywords: 2-butyne-3D-balls-B.png Ball-and-stick model of the 2-butyne molecule also known as dimethylacetylene a four-carbon internal alkyne Derived from File 2-pentyne-3D-balls png and File Ethane-3D-balls png 2010-10-30 Jynto and Ben Mills Butynes Images by Jynto Ball-and-stick models |