Potassium fumarate

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Potassium fumarate
Potassium fumarate.png
Names
Preferred IUPAC name
Dipotassium (2E)-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
  • 7704-72-5 checkY
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.119.574 Edit this at Wikidata
E number E366 (antioxidants, ...)
UNII
  • 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+;; checkY
    Key: SHPKCSFVQGSAJU-SEPHDYHBSA-L checkY
  • 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
  • [K+].[K+].[O-]C(=O)\C=C\C([O-])=O
Properties
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).
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Infobox references

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

It has E number "E366".