Structure of 7<i>H</i>-purine
<ul><li><a href="//commons.wikimedia.org/wiki/File:7H-Purine.svg" title="File:7H-Purine.svg">7H-Purine.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Sponk" title="User:Sponk">Sponk</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Sponk" title="User talk:Sponk"><span class="signature-talk">talk</span></a>)</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Thgoiter" title="User:Thgoiter">Thgoiter</a></li></ul>
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:7H-Purine.svg" title="File:7H-Purine.svg">7H-Purine.svg</a>: <a href="//commons.wikimedia.org/wiki/File:7H-Purine.svg" class="image"><img alt="7H-Purine.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/7H-Purine.svg/50px-7H-Purine.svg.png" decoding="async" width="50" height="38" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/7H-Purine.svg/75px-7H-Purine.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/7H-Purine.svg/100px-7H-Purine.svg.png 2x" data-file-width="148" data-file-height="112"></a><br>