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