Chicoric acid

Chicoric acid
Names
	Preferred IUPAC name (2R,3R)-2,3-Bis{[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy}butanedioic acid
	Other names Cichoric acid; (2R,3R)-O-Dicaffeoyltartaric acid
Identifiers
CAS Number	6537-80-0 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL282731 ;
ChemSpider	4445078 ;
ECHA InfoCard	100.109.212
KEGG	C10437 ;
PubChem CID	5281764;
UNII	S4YY3V8YHD ;
CompTox Dashboard (EPA)	DTXSID0033332 ;
	InChI InChI=1S/C22H18O12/c23-13-5-1-11(9-15(13)25)3-7-17(27)33-19(21(29)30)20(22(31)32)34-18(28)8-4-12-2-6-14(24)16(26)10-12/h1-10,19-20,23-26H,(H,29,30)(H,31,32)/b7-3+,8-4+/t19-,20-/m1/s1 Key: YDDGKXBLOXEEMN-IABMMNSOSA-N ; InChI=1/C22H18O12/c23-13-5-1-11(9-15(13)25)3-7-17(27)33-19(21(29)30)20(22(31)32)34-18(28)8-4-12-2-6-14(24)16(26)10-12/h1-10,19-20,23-26H,(H,29,30)(H,31,32)/b7-3+,8-4+/t19-,20-/m1/s1 Key: YDDGKXBLOXEEMN-IABMMNSOBV;
	SMILES O=C(O)[C@H](OC(=O)\C=C\c1ccc(O)c(O)c1)[C@@H](OC(=O)\C=C\c2cc(O)c(O)cc2)C(=O)O;
Properties
Chemical formula	C22H18O12
Molar mass	474.371 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Chicoric acid (also known as cichoric acid) is a hydroxycinnamic acid, an organic compound of the phenylpropanoid class and occurs in a variety of plant species. It is a derivative of both caffeic acid and tartaric acid.

As a suitable marker for the distinction of Echinacea species, it is often assayed using RP-HPLC and Thin layer chromatography (TLC) methods.