Sodium fumarate

Sodium fumarate

Names
IUPAC name Disodium (E)-but-2-enedioate
Other names Disodium fumarate
Identifiers
CAS Registry Number	7704-73-6 N
ChemSpider	4895542 Y
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+;; Y Key: MSJMDZAOKORVFC-SEPHDYHBSA-L Y 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
Jmol-3D images	Image
PubChem	9734
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 noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
N verify (what is: Y/N?)
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