Sodium fumarate

Sodium fumarate
Names
	IUPAC name Disodium (E)-but-2-enedioate
	Other names Disodium fumarate
Identifiers
CAS Number	7704-73-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:115156 ;
ChemSpider	4895542 ;
ECHA InfoCard	100.037.337
PubChem CID	9734;
	InChI InChI=1S/C4H4O4.2Na/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;; Key: MSJMDZAOKORVFC-SEPHDYHBSA-L ; InChI=1/C4H4O4.2Na/c5-3(6)1-2-4(7)8;;/h1-2H,(H,5,6)(H,7,8);;/q;2+1/p-2/b2-1+;; Key: MSJMDZAOKORVFC-HYKNURKJBY;
	SMILES [Na+].[Na+].[O-]C(=O)\C=C\C([O-])=O;
Properties
Chemical formula	C4H2Na2O4
Molar mass	160.04 g/mol
Appearance	White powder
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Sodium fumarate, also called disodium fumarate, is a compound with the molecular formula Na₂C₄H₂O₄. It is the sodium salt of fumaric acid, used as an acidity regulator in processed foods. Sodium fumarate and fumaric acid are sometimes used as terminal electron acceptors in the cultivation of certain anaerobic microorganisms. It appears as an odourless, white, crystalline powder and is soluble in water.

As a food additive, it has the E number E365.

References

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