Chemical structure of <a href="https://en.wikipedia.org/wiki/benidipine" class="extiw" title="w:benidipine">benidipine</a>.
<a href="//commons.wikimedia.org/wiki/User:Wostr" title="User:Wostr">Wostr</a>
<span class="int-own-work" lang="en">Own work</span>