    &lt;chr&gt;  &lt;chr&gt;                 </span>
<span class="co">#&gt; 1 MOL1       InChIKey=NVJUHMXYKCUMQA-UHFFFAOYSA-N CCCOCC 2.1</span>


<span class="fu"><a href="../reference/chebi.html">chebi</a></span><span class="op">(</span><span class="va">Classification</span><span class="op">)</span>
<span class="co">#&gt;  [1] "L-alpha-amino acid (CHEBI:15705)"                  </span>
<span class="co">#&gt;  [2] "imidazolyl carboxylic acid (CHEBI:38307)"          </span>
<span class="co">#&gt;  [3] "aralk