o-Coumaric acid

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o-Coumaric acid
Skeletal formula of o-coumaric acid
IUPAC name
(E)-3-(2-Hydroxyphenyl)prop-2-enoic acid
Other names
ortho-Coumaric acid
2-Hydroxycinnamic acid
3D model (JSmol)
ECHA InfoCard 100.009.444
Molar mass 164.16 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

o-Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acids - o-coumaric acid, m-coumaric acid, and p-coumaric acid- that differ by the position of the hydroxy substitution of the phenyl group.

Natural occurrence[edit]

o-Coumaric acid can be found in vinegar.

2-coumarate reductase is an enzyme that produces 2-coumarate from 3-(2-hydroxyphenyl)propanoate and NAD+. This enzyme participates in phenylalanine metabolism.[1]


  1. ^ Levy, Carl C.; Weinstein, Gerald D. (1964). "The Metabolism of Coumarin by a Microorganism. II. The Reduction of o-Coumaric Acid to Melilotic Acid". Biochemistry. 3 (12): 1944–7. doi:10.1021/bi00900a027. PMID 14269315. 

External links[edit]