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Cinnamic acid is an organic compound with the formula C 6 H 5-CH=CH-COOH. It is a white crystalline compound that is slightly soluble in water, and freely soluble in many organic solvents. [ 4 ] Classified as an unsaturated carboxylic acid , it occurs naturally in a number of plants.
The European Parliament registered cinnamyl acetate as both a flavouring substance and a cosmetic compound in 1996. [14] [15] The Joint (FAO/WHO) Expert Committee on Food Additives described in 2000 that “the substance does not present a safety concern at current levels of intake when used as a flavouring agent”. [1]
Ethyl cinnamate is the ester of cinnamic acid and ethanol. It is present in the essential oil of cinnamon. [citation needed] Pure ethyl cinnamate has a "fruity and balsamic odor, reminiscent of cinnamon with an amber note". [1] The p-methoxy derivative is reported to be a monoamine oxidase inhibitor. [2]
The systematic name of this enzyme class is trans-cinnamate,NADPH:oxygen oxidoreductase (2-hydroxylating). Other names in common use include cinnamic acid 2-hydroxylase , cinnamate 2-monooxygenase , cinnamic 2-hydroxylase , cinnamate 2-hydroxylase , and trans-cinnamic acid 2-hydroxylase .
α-Phenylcinnamic acid is a phenylpropanoid, or, more specifically, a derivative of cinnamic acid. It has the formula C 15 H 12 O 2 and appears as an off-white crystalline solid. [ 2 ]
trans-cinnamic acid phenylacrylic acid cinnamylic acid 3-phenylacrylic acid (E)-cinnamic acid benzenepropenoic acid isocinnamic acid: C 6 H 5 CH=CHCOOH: C10. IUPAC name:
Methyl cinnamate is the methyl ester of cinnamic acid and is a white or transparent solid with a strong, aromatic odor. It is found naturally in a variety of plants, including in fruits, like strawberry, and some culinary spices, such as Sichuan pepper and some varieties of basil. [4]
In enzymology, a trans-cinnamate 4-monooxygenase (EC 1.14.14.91) is an enzyme that catalyzes the chemical reaction trans-cinnamate + NADPH + H + + O 2 ⇌ {\displaystyle \rightleftharpoons } 4-hydroxycinnamate + NADP + + H 2 O