Disodium glutamate

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Disodium glutamate
CAS number 142-47-2 N
PubChem 9794116
ChemSpider 7969883 YesY
Jmol-3D images Image 1
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Molecular formula C5H7NNa2O4
Molar mass 191.09 g/mol
Appearance white crystalline powder
Odor practically odorless
Boiling point 225 °C (437 °F; 498 K) (decomposes)
Solubility in water 73.9 g/100 mL (25 °C)
Solubility sparingly soluble in alcohol
Acidity (pKa) 6.8
LD50 16600 mg.mg (rat, oral)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid. It used as a flavoring agent to impart a meat-like flavor.


Disodium glutamate can be produced by neutralizing glutamic acid with two molar equivalents of sodium hydroxide (NaOH).

See also[edit]