Disodium glutamate

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

Disodium glutamate
Names
IUPAC name
Disodium 2-aminopentanedioate
Other names
DSG
Identifiers
3D model (JSmol)
ChemSpider
UNII
Properties
C5H7NNa2O4
Molar mass 191.09 g/mol
Appearance white crystalline powder
Odor practically odorless
Boiling point 225 °C (437 °F; 498 K) (decomposes)
73.9 g/100 mL (25 °C)
Solubility sparingly soluble in alcohol
Acidity (pKa) 6.8
Hazards
Lethal dose or concentration (LD, LC):
16600 mg.mg (rat, oral)
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

Formation

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

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See also

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