Chemical structure of <a href="https://en.wikipedia.org/wiki/anserine" class="extiw" title="w:anserine">anserine</a>.
<a href="//commons.wikimedia.org/wiki/User:Kiwi128" title="User:Kiwi128">Wiremu Stadtwald Demchick</a>
2015-09-20
<span class="int-own-work" lang="en">Own work</span>