Skeletal formula of <a href="https://en.wikipedia.org/wiki/2-oxoquazepam" class="extiw" title="w:2-oxoquazepam">2-oxoquazepam</a>—a <a href="https://en.wikipedia.org/wiki/benzodiazepine" class="extiw" title="w:benzodiazepine">benzodiazepine</a> derivative and a major active metabolite of <a href="https://en.wikipedia.org/wiki/quazepam" class="extiw" title="w:quazepam">quazepam</a>. Created with <a rel="nofollow" class="external text" href="http://www.chemdoodle.com">ChemDoodle 8.0.0.3</a> and <a rel="nofollow" class="external text" href="http://www.adobe.com/products/illustrator.html">Adobe Illustrator CC 2015</a>.
<a href="//commons.wikimedia.org/wiki/User:Vaccinationist" title="User:Vaccinationist">Vaccinationist</a>
Own work  using: <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/93250">PubChem</a>