2,3-Dihydroxycinnamic acid

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2,3-Dihydroxycinnamic acid
Chemical structure of 2,3-dihydroxycinnamic acid
CAS number 31082-90-3
PubChem 5282146
Jmol-3D images Image 1
Molecular formula C9H8O4
Molar mass 180.16 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

2,3-Dihydroxycinnamic acid is a hydroxycinnamic acid. It is an isomer of caffeic acid.

It is a metabolite found in human urine.[1]


  1. ^ Heindl, A; Rau, O; Spiteller, G (1985). "Identification of aromatic dihydroxy acids in biological fluids". Biomedical mass spectrometry 12 (2): 59–66. PMID 3158357.