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Potassium fumarate
	;
Names;
	; IUPAC name; dipotassium (E)-but-2-enedioate;
	Other names; potassium fumarate, potassium (E)-butenedioate, Dipotassium fumarate, Fumaric acid, EINECS 223-979-8, 4151-35-3, 7704-72-5;
Identifiers;
; CAS Number;	; ; 7704-72-5 N; ;
; 3D model (JSmol);	; Interactive image; ;
; ChemSpider;	; ; 4938656 Y; ;
; ECHA InfoCard;	; 100.119.574;
; E number;	E366 (antioxidants, ...);
; ; PubChem CID; ;	; 6433511; ;
	; ; InChI; ; InChI=1S/C4H4O4.2K/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;; Y; Key: SHPKCSFVQGSAJU-SEPHDYHBSA-L Y; ; ; ; InChI=1/C4H4O4.2K/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;;; Key: SHPKCSFVQGSAJU-HYKNURKJBN; ; ; ;
	; ; SMILES; [K+].[K+].[O-]C(=O)C=CC([O-])=O; ;
Properties;
; Chemical formula;	K2C4H2O4
; Molar mass;	192.253g/mol ;
	; Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).;
	; N verify (what is YN ?);
	; Infobox references;
;	;

Potassium fumarate is a compound with formula K₂C₄H₂O₄. It is the potassium salt of fumaric acid.

It has E number "E366".

This article about an organic compound is a stub. You can help Wikipedia by expanding it.

Names

IUPAC name dipotassium (E)-but-2-enedioate
Other names potassium fumarate, potassium (E)-butenedioate, Dipotassium fumarate, Fumaric acid, EINECS 223-979-8, 4151-35-3, 7704-72-5
Identifiers
CAS Number	7704-72-5^N
3D model (JSmol)	Interactive image
ChemSpider	4938656^Y
ECHA InfoCard	100.119.574
E number	E366 (antioxidants, ...)
PubChem CID	6433511
InChI InChI=1S/C4H4O4.2K/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;;^Y Key: SHPKCSFVQGSAJU-SEPHDYHBSA-L^Y InChI=1/C4H4O4.2K/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;; Key: SHPKCSFVQGSAJU-HYKNURKJBN
SMILES [K+].[K+].[O-]C(=O)C=CC([O-])=O
Properties
Chemical formula	K₂C₄H₂O₄
Molar mass	192.253g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references