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Monopotassium glutamate

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Monopotassium glutamate
Names
IUPAC name Potassium 2-amino-5-hydroxy-5-oxopentanoate
Other names
  • Potassium glutamate
  • E622
  • Glutamic acid potassium salt
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.039.161 Edit this at Wikidata
E number E622 (flavour enhancer)
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C5H9NO4.K/c6-3(5(9)10)1-2-4(7)8;/h3H,1-2,6H2,(H,7,8)(H,9,10);/q;+1/p-1Key: HQEROMHPIOLGCB-UHFFFAOYSA-M
  • InChI=1/C5H9NO4.K/c6-3(5(9)10)1-2-4(7)8;/h3H,1-2,6H2,(H,7,8)(H,9,10);/q;+1/p-1Key: HQEROMHPIOLGCB-REWHXWOFAL
SMILES
  • .O=C()C(N)CCC(=O)O
Properties
Chemical formula C5H8KNO4
Molar mass 185.220 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Monopotassium glutamate (MPG) is the compound with formula KC5H8NO4. It is a potassium salt of glutamic acid.

It has the E number E622 and is used in foods as a flavor enhancer. It is a non-sodium MSG alternative.

See also

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