Monopotassium glutamate

Names
IUPAC name

Potassium 2-amino-5-hydroxy-5-oxopentanoate

Other names

* Potassium glutamate
* E622
* Glutamic acid potassium salt

Identifiers

CAS Number

* 6382-01-0 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 13228 Y

PubChem CID

* 23669634

UNII |

* B5ZC7FHO6O Y

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-1 Y

Key: HQEROMHPIOLGCB-UHFFFAOYSA-M Y

* 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-1

Key: HQEROMHPIOLGCB-REWHXWOFAL

SMILES

* [K+].O=C([O-])C(N)CCC(=O)O

Properties

Chemical formula

| C5H8KNO4
Molar mass | 185.220 g·mol−1

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Y verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

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. It is generally recognized as safe in the EU and in the USA.[1]

## See also

* Monosodium glutamate
* Monoammonium glutamate

## References

1. ↑ Walker, Ronald; Lupien, John R. (April 2000). "The Safety Evaluation of Monosodium Glutamate" (in en). The Journal of Nutrition 130 (4): 1049S–1052S. doi:10.1093/jn/130.4.1049S. https://linkinghub.elsevier.com/retrieve/pii/S002231662214037X.

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*[CID]: Compound ID