Skeletal formula of <a href="https://en.wikipedia.org/wiki/chloropyramine" class="extiw" title="w:chloropyramine">chloropyramine</a> — a 1<sup>st</sup> generation ("sedating") <a href="https://en.wikipedia.org/wiki/H1_antagonist" class="extiw" title="w:H1 antagonist">antihistamine</a>.
<a href="//commons.wikimedia.org/wiki/User:Bryan_Derksen" title="User:Bryan Derksen">Bryan Derksen</a>
Own work  using: <a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/25295">Chloropyramine on PubChem</a>