2,3-Dihydroxycinnamic acid

2,3-Dihydroxycinnamic acid
Names
	Preferred IUPAC name (2E)-3-(2,3-Dihydroxyphenyl)prop-2-enoic acid
	Other names trans-2,3-Dihydroxycinnamate; 3-(2,3-Dihydroxyphenyl)acrylic acid
Identifiers
CAS Number	31082-90-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	4445343;
PubChem CID	5282146;
UNII	8EU63XMR43 ;
CompTox Dashboard (EPA)	DTXSID601030503 ;
	InChI InChI=1S/C9H8O4/c10-7-3-1-2-6(9(7)13)4-5-8(11)12/h1-5,10,13H,(H,11,12)/b5-4+ Key: SIUKXCMDYPYCLH-SNAWJCMRSA-N; InChI=1/C9H8O4/c10-7-3-1-2-6(9(7)13)4-5-8(11)12/h1-5,10,13H,(H,11,12)/b5-4+ Key: SIUKXCMDYPYCLH-SNAWJCMRBO;
	SMILES c1cc(c(c(c1)O)O)/C=C/C(=O)O;
Properties
Chemical formula	C9H8O4
Molar mass	180.159 g·mol−1
	Except where otherwise noted, 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]

References

^ Heindl, A; Rau, O; Spiteller, G (1985). "Identification of aromatic dihydroxy acids in biological fluids". Biomedical Mass Spectrometry. 12 (2): 59–66. doi:10.1002/bms.1200120203. PMID 3158357.

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