Strukturformel von <a href="https://de.wikipedia.org/wiki/4-Vinylcyclohexen" class="extiw" title="de:4-Vinylcyclohexen">4-Vinylcyclohexen</a>.
<a href="//commons.wikimedia.org/wiki/User:Master_Uegly" title="User:Master Uegly">Master Uegly</a>
<span class="int-own-work" lang="en">Own work</span>