Chemical structure of thienorphine. Based on <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/102212421">PubChem</a>
Ed (<a href="//commons.wikimedia.org/wiki/User_talk:Edgar181" title="User talk:Edgar181">Edgar181</a>)
2016-05-14 22:16
<span class="int-own-work" lang="en">Own work</span>