Chorismic acid

Chorismic acid
Names
	IUPAC name (3R,4R)-3-[(1-carboxyvinyl)oxy]-4-hydroxycyclohexa-1,5-diene-1-carboxylic acid
Identifiers
CAS Number	617-12-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17333 ;
ChemSpider	11542 ;
ECHA InfoCard	100.164.204
PubChem CID	12039;
UNII	GI1BLY82Y1;
CompTox Dashboard (EPA)	DTXSID50210697 ;
	InChI InChI=1S/C10H10O6/c1-5(9(12)13)16-8-4-6(10(14)15)2-3-7(8)11/h2-4,7-8,11H,1H2,(H,12,13)(H,14,15)/t7-,8-/m1/s1 Key: WTFXTQVDAKGDEY-HTQZYQBOSA-N ; InChI=1/C10H10O6/c1-5(9(12)13)16-8-4-6(10(14)15)2-3-7(8)11/h2-4,7-8,11H,1H2,(H,12,13)(H,14,15)/t7-,8-/m1/s1 Key: WTFXTQVDAKGDEY-HTQZYQBOBD;
	SMILES O=C(O)C1=C/[C@@H](O/C(C(=O)O)=C)[C@H](O)/C=C1;
Properties
Chemical formula	C10H10O6
Molar mass	226.184 g·mol−1
Melting point	140 °C (284 °F; 413 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H315, H319, H332, H335, H350, H361
Precautionary statements	P201, P202, P261, P264, P270, P271, P280, P281, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P308+P313, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
	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

Chorismic acid, more commonly known as its anionic form chorismate, is an important biochemical intermediate in plants and microorganisms. It is a precursor for:

The aromatic amino acids phenylalanine, tryptophan, and tyrosine
Indole, indole derivatives and tryptophan
2,3-Dihydroxybenzoic acid (DHB) used for enterobactin biosynthesis
The plant hormone salicylic acid
Many alkaloids and other aromatic metabolites.
The folate precursor para-aminobenzoate (pABA)
The biosynthesis of vitamin K and folate in plants and microorganisms.

The name chorismic acid derives from a classical Greek word χωρίζω meaning "to separate", because the compound plays a role as a branch-point in aromatic amino acid biosynthesis.

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