'''Cinnamic acid''' is an [[organic compound]] with the formula [[phenyl|C<sub>6</sub>H<sub>5</sub>]]-CH=CH-[[Carboxylic acid|COOH]]. It is a white crystalline compound that is slightly [[soluble]] in water, and freely soluble in many organic solvents.<ref name="Merck-1996"/> Classified as an unsaturated [[carboxylic acid]], it occurs naturally in a number of plants. It exists as both a [[Cis–trans isomerism|''cis'' and a ''trans'' isomer]], although the latter is more common.<ref name="Garbe-2012"/>
'''Cinnamic acid''' is an [[organic compound]] with the formula [[phenyl|C<sub>6</sub>H<sub>5</sub>]]-CH=CH-[[Carboxylic acid|COOH]]. It is a white crystalline compound that is slightly [[soluble]] in water, and freely soluble in many organic solvents.<ref name="Merck-1996"/> Classified as an unsaturated [[carboxylic acid]], it occurs naturally in a number of plants. It exists as both a [[Cis–trans isomerism|''cis'' and a ''trans'' isomer]], although the latter is more common.<ref name="Garbe-2012"/> The ''cis''-isomer is called [[allocinnamic acid]].
Cinnamic acid is an organic compound with the formula C6H5-CH=CH-COOH. It is a white crystalline compound that is slightly soluble in water, and freely soluble in many organic solvents.[1] Classified as an unsaturated carboxylic acid, it occurs naturally in a number of plants. It exists as both a cis and a trans isomer, although the latter is more common.[2] The cis-isomer is called allocinnamic acid.
It is obtained from oil of cinnamon, or from balsams such as storax.[1] It is also found in shea butter.Script error: No such module "Unsubst". Cinnamic acid has a honey-like odor;[4] 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.[5]
