Structure of all-trans retinol
<a href="//commons.wikimedia.org/wiki/User:NEUROtiker" title="User:NEUROtiker">NEUROtiker</a> (<a href="//commons.wikimedia.org/wiki/User_talk:NEUROtiker" title="User talk:NEUROtiker">talk</a>)
2008-07-09
<span class="int-own-work" lang="en">Own work</span>