Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid.
It is used as a flavoring agent to impart umami flavor.
Names | |
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IUPAC name Disodium 2-aminopentanedioate | |
Other names DSG | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
PubChem CID | |
UNII | |
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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): | |
LD50 (median dose) | 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). |
Disodium glutamate can be produced by neutralizing glutamic acid with two molar equivalents of sodium hydroxide (NaOH).
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