Skeletal formula of <a href="https://en.wikipedia.org/wiki/clenbuterol" class="extiw" title="w:clenbuterol">clenbuterol</a> — a <a href="https://en.wikipedia.org/wiki/Long-acting_beta-adrenoceptor_agonist" class="extiw" title="w:Long-acting beta-adrenoceptor agonist">long-acting</a> <a href="https://en.wikipedia.org/wiki/Beta2-adrenergic_agonist" class="extiw" title="w:Beta2-adrenergic agonist">β<sub>2</sub> adrenoreceptor agonist</a> (LABA).
<a href="//commons.wikimedia.org/wiki/User:Hoffmeier" title="User:Hoffmeier">Klaus Hoffmeier</a>
<span class="int-own-work" lang="en">Own work</span>