Noradrenaline molecule 3D structure (<a href="//commons.wikimedia.org/wiki/User:Ring0/3D_images_of_molecules_creation_methodology" title="User:Ring0/3D images of molecules creation methodology">methodology</a>).
<a href="//commons.wikimedia.org/wiki/User:Ring0" title="User:Ring0">Ring0</a>
<span class="int-own-work" lang="en">Own work</span>