m-Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid.[1] There are three isomers of coumaric acido-coumaric acid, m-coumaric acid, and p-coumaric acid – that differ by the position of the hydroxy substitution of the phenyl group.

m-Coumaric acid
Skeletal formula of m-coumaric acid
Names
Preferred IUPAC name
(2E)-3-(3-Hydroxyphenyl)prop-2-enoic acid
Other names
meta-Coumaric acid
3-Hydroxycinnamic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.742 Edit this at Wikidata
EC Number
  • 209-615-0
KEGG
UNII
  • InChI=1S/C9H8O3/c10-8-3-1-2-7(6-8)4-5-9(11)12/h1-6,10H,(H,11,12)/b5-4+
    Key: KKSDGJDHHZEWEP-SNAWJCMRSA-N
  • InChI=1/C9H8O3/c10-8-3-1-2-7(6-8)4-5-9(11)12/h1-6,10H,(H,11,12)/b5-4+
    Key: KKSDGJDHHZEWEP-SNAWJCMRBO
  • C1=CC(=CC(=C1)O)/C=C/C(=O)O
Properties
C9H8O3
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).

m-Coumaric acid can be found in vinegar.

References

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