Structural formula of <a href="https://en.wikipedia.org/wiki/beta-hydroxy_beta-methylbutyrate" class="extiw" title="w:beta-hydroxy beta-methylbutyrate">beta-hydroxy beta-methylbutyrate</a> (alternate version).
<a href="//commons.wikimedia.org/wiki/User:DMacks" title="User:DMacks">DMacks</a>
Derivative of <a href="//commons.wikimedia.org/wiki/File:Beta-Hydroxy_beta-methylbutyric_acid_2.svg" title="File:Beta-Hydroxy beta-methylbutyric acid 2.svg">Beta-Hydroxy beta-methylbutyric acid 2.svg</a>  (<a href="//commons.wikimedia.org/wiki/Template:PD-chem" title="Template:PD-chem"><span style="font-family:monospace,monospace;">{{PD-chem}}</span></a> image by <a href="//commons.wikimedia.org/wiki/User:Seppi333" title="User:Seppi333">Seppi333</a>)