Skeletal formula of <a href="https://en.wikipedia.org/wiki/arketamine" class="extiw" title="w:arketamine">arketamine</a> or (<i>R</i>)-(–)-ketamine — an enantiomer of <a href="https://en.wikipedia.org/wiki/ketamine" class="extiw" title="w:ketamine">ketamine</a>.
<a href="//commons.wikimedia.org/wiki/User:Vaccinationist" title="User:Vaccinationist">Vaccinationist</a>
Own work  using: <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/644025">PubChem</a>