Structure of Patent blue V
<a href="//commons.wikimedia.org/wiki/User:NEUROtiker" title="User:NEUROtiker">NEUROtiker</a>, changes by <a href="//commons.wikimedia.org/wiki/User:Kopiersperre" title="User:Kopiersperre">Kopiersperre</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Kopiersperre" title="User talk:Kopiersperre"><span class="signature-talk">talk</span></a>)
<span class="int-own-work" lang="en">Own work</span>