Structure of <a href="https://en.wikipedia.org/wiki/Isosorbide_mononitrate" class="extiw" title="w:Isosorbide mononitrate">Isosorbide mononitrate</a>; also known as monosorbitrate and «Imdur»
<a href="//commons.wikimedia.org/wiki/User:Yikrazuul" title="User:Yikrazuul">Yikrazuul</a>
<span class="int-own-work" lang="en">Own work</span>