Eugenol
<p><b>Eugenol</b> is a <a href="http://en.wikipedia.org/wiki/Phenylpropene" title="Phenylpropene">phenylpropene</a>, an allyl chain-substituted <a href="http://en.wikipedia.org/wiki/Guaiacol" title="Guaiacol">guaiacol</a>. </p>
<p>
Eugenol is a member of the <a href="http://en.wikipedia.org/wiki/Phenylpropanoid" title="Phenylpropanoid">phenylpropanoids</a> class of chemical compounds. </p>
<p>
It is a clear to pale yellow oily liquid extracted from certain <a href="http://en.wikipedia.org/wiki/Essential_oil" title="Essential oil">essential oils</a> especially from <a href="http://en.wikipedia.org/wiki/Clove" title="Clove">clove</a> oil, <a href="http://en.wikipedia.org/wiki/Nutmeg" title="Nutmeg">nutmeg</a>, <a href="http://en.wikipedia.org/wiki/Cinnamon" title="Cinnamon">cinnamon</a>, <a href="http://en.wikipedia.org/wiki/Basil" title="Basil">basil</a> and <a href="http://en.wikipedia.org/wiki/Bay_leaf" title="Bay leaf">bay leaf</a>.<sup id="cite_ref-0" class="reference"><a href="http://en.wikipedia.org/wiki/Eugenol#cite_note-0">[1]</a></sup><sup id="cite_ref-1" class="reference"><a href="http://en.wikipedia.org/wiki/Eugenol#cite_note-1">[2]</a></sup><sup id="cite_ref-2" class="reference"><a href="http://en.wikipedia.org/wiki/Eugenol#cite_note-2">[3]</a></sup><sup id="cite_ref-3" class="reference"><a href="http://en.wikipedia.org/wiki/Eugenol#cite_note-3">[4]</a></sup><sup id="cite_ref-4" class="reference"><a href="http://en.wikipedia.org/wiki/Eugenol#cite_note-4">[5]</a></sup> It is slightly <a href="http://en.wikipedia.org/wiki/Soluble" title="Soluble" class="mw-redirect">soluble</a> in water and soluble in organic <a href="http://en.wikipedia.org/wiki/Solvent" title="Solvent">solvents</a>. It has a spicy, clove-like aroma.</p>
<p>
The name is derived from the scientific name for <a href="http://en.wikipedia.org/wiki/Clove" title="Clove">clove</a>, <i>Eugenia aromaticum</i> or <i>Eugenia caryophyllata</i>. </p>
<p>
Eugenol is responsible for the aroma of cloves. </p>
<p>
It is the main component in the <a href="http://en.wikipedia.org/wiki/Essential_oil" title="Essential oil">essential oil</a> extracted from cloves, comprising 72–90% of the total.</p>