Chlorogenic acid

Chlorogenic acid
Names
	Preferred IUPAC name (1S,3R,4R,5R)-3-{[(2E)-3-(3,4-Dihydroxyphenyl)prop-2-enoyl]oxy}-1,4,5-trihydroxycyclohexane-1-carboxylic acid
	Other names 3-(3,4-Dihydroxycinnamoyl)quinate; 3-(3,4-Dihydroxycinnamoyl)quinic acid; 3-Caffeoylquinate; 3-Caffeoylquinic acid; 3-CQA; 3-O-Caffeoylquinic acid; Chlorogenate; Chlorogenic acid; Heriguard; 3-trans-Caffeoylquinic acid; 5-O-Caffeoylquinic acid
Identifiers
CAS Number	202650-88-2 ; 327-97-9 (E/Z);
3D model (JSmol)	Interactive image;
3DMet	B01342;
ChEBI	CHEBI:16112 ;
ChEMBL	ChEMBL284616 ;
ChemSpider	1405788 ;
KEGG	C00852;
PubChem CID	1794427;
RTECS number	GU8480000;
UNII	318ADP12RI (E) ;
	InChI InChI=1S/C16H18O9/c17-9-3-1-8(5-10(9)18)2-4-13(20)25-12-7-16(24,15(22)23)6-11(19)14(12)21/h1-5,11-12,14,17-19,21,24H,6-7H2,(H,22,23)/b4-2+/t11-,12-,14-,16+/m1/s1 Key: CWVRJTMFETXNAD-JUHZACGLSA-N ; InChI=1/C16H18O9/c17-9-3-1-8(5-10(9)18)2-4-13(20)25-12-7-16(24,15(22)23)6-11(19)14(12)21/h1-5,11-12,14,17-19,21,24H,6-7H2,(H,22,23)/b4-2+/t11-,12-,14-,16+/m1/s1 Key: CWVRJTMFETXNAD-JUHZACGLBD;
	SMILES O=C(O)[C@]2(O)C[C@@H](O)[C@@H](O)[C@H](OC(=O)\C=C\c1ccc(O)c(O)c1)C2;
Properties
Chemical formula	C16H18O9
Molar mass	354.311 g·mol−1
Density	1.28 g/cm3
Melting point	207 to 209 °C (405 to 408 °F; 480 to 482 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
NFPA 704 (fire diamond)	1 0
Safety data sheet (SDS)	External MSDS
	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

Chlorogenic acid (CGA) is the ester of caffeic acid and (−)-quinic acid, functioning as an intermediate in lignin biosynthesis. The term "chlorogenic acids" refers to a related polyphenol family of esters, including hydroxycinnamic acids (caffeic acid, ferulic acid and p-coumaric acid) with quinic acid.

Despite the "chloro" of the name, chlorogenic acids contain no chlorine. Instead, the name comes from the Greek χλωρός (khloros, light green) and -γένος (ghenos, a suffix meaning "giving rise to"), pertaining to the green color produced when chlorogenic acids are oxidized.

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