3,5-Dihydroxycinnamic acid

3,5-Dihydroxycinnamic acid
Names
	IUPAC name (E)-3-(3,5-dihydroxyphenyl)prop-2-enoic acid
Identifiers
CAS Number	28374-93-8;
3D model (JSmol)	Interactive image;
ChemSpider	4947733;
PubChem CID	6443769;
	InChI InChI=1S/C9H8O4/c10-7-3-6(1-2-9(12)13)4-8(11)5-7/h1-5,10-11H,(H,12,13)/b2-1+ Key: MFFCZSWTQMCKFP-OWOJBTEDSA-N; InChI=1/C9H8O4/c10-7-3-6(1-2-9(12)13)4-8(11)5-7/h1-5,10-11H,(H,12,13)/b2-1+ Key: MFFCZSWTQMCKFP-OWOJBTEDBQ;
	SMILES c1c(cc(cc1O)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

3,5-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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