Sawhorse representation of <a href="https://en.wikipedia.org/wiki/Butane" class="extiw" title="en:Butane">butane</a> molecule in -synclinal (gauche) conformation.
<b>Vectorization: </b> <a href="//commons.wikimedia.org/wiki/User:Alhadis" title="User:Alhadis">Alhadis</a>
13 December 2009 (original upload date)
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Sawhorse_projection_butane_-sc.png" title="File:Sawhorse projection butane -sc.png">Sawhorse projection butane -sc.png</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Mykhal" title="User:Mykhal">Mykhal</a>