Chemical structure diagram of carbazochrome.
<b>Vectorization: </b> <a href="//commons.wikimedia.org/wiki/User:Alhadis" title="User:Alhadis">Alhadis</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Carbazochrome.png" title="File:Carbazochrome.png">Carbazochrome.png</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Edgar181" title="User:Edgar181">Edgar181</a>