<b>Vectorization: </b> <a href="//commons.wikimedia.org/wiki/User:Alhadis" title="User:Alhadis">Alhadis</a>
30 May 2007 (original upload date)
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Phenyl-group-circle-2D-skeletal.png" title="File:Phenyl-group-circle-2D-skeletal.png">Phenyl-group-circle-2D-skeletal.png</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Benjah-bmm27" title="User:Benjah-bmm27">Ben Mills</a>