Editing Cinnamic acid (section)

===Natural occurrence===
It is obtained from oil of [[cinnamon]], or from [[balsam]]s such as [[storax]].<ref name="Merck-1996">{{Merck12th}}</ref> It is also found in [[shea butter]].{{cn|date=June 2023}} Cinnamic acid has a [[honey]]-like odor;<ref name="flavornet.org">{{cite web|url=http://www.flavornet.org/info/140-10-3.html|title=Cinnamic acid|website=flavornet.org}}</ref> and its more volatile ethyl ester, [[ethyl cinnamate]], is a flavor component in the essential oil of [[cinnamon]], in which related [[cinnamaldehyde]] is the major constituent. It is also found in wood from many diverse tree species.<ref>{{cite web |last1=Oldach |first1=Laurel |title=Forensic researchers use mass spectrometry to identify smuggled wood |url=https://cen.acs.org/analytical-chemistry/mass-spectrometry/Forensic-researchers-use-mass-spectrometry-to-identify-smuggled-wood/101/i7 |website=Chemical and Engineering News |publisher=American Chemical Society |date=February 22, 2023}}</ref>