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Cinnamic acid
Overview
Organic acid
An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. The relative stability of the conjugate...
, which is slightly soluble in water.
It is obtained from oil of cinnamon
Cinnamon
Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods...
, or from balsams
Balsam poplar
The balsam poplars — also known as Populus sect. Tacamahaca — are a group of about 10 species of poplars, indigenous to North America and eastern Asia, distinguished by the balsam scent of their buds, the whitish undersides of their leaves, and the leaf petiole being round in cross-section...
such as storax
Storax
Storax is also a name for trees in the genus StyraxStorax is the resinous exudate of the tree Liquidambar orientalis , occasionally used in incense or as an aromatic fixative in perfumery....
. It is also found in shea butter
Shea butter
Shea butter is a slightly yellowish or ivory-colored fat extracted from the nut of the African shea tree . It is widely used in cosmetics as a moisturizer, salve or lotion. Shea butter is edible and may be used in food preparation...
and is the best indication of its environmental history and post-extraction conditions. It can also be made synthetically.
Cinnamic acid is used in flavors, synthetic indigo, and certain pharmaceuticals, though its primary use is in the manufacturing of the methyl, ethyl, and benzyl ester
Ester
Esters are chemical compounds derived by reacting an oxoacid with a hydroxyl compound such as an alcohol or phenol. Esters are usually derived from an inorganic acid or organic acid in which at least one -OH group is replaced by an -O-alkyl group, and most commonly from carboxylic acids and...
s for the perfume industry.