Disodium glutamate

Disodium glutamate
Names
IUPAC name
Disodium 2-aminopentanedioate
Other names
DSG
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C5H9NO4.2Na/c6-3(5(9)10)1-2-4(7)8;;/h3H,1-2,6H2,(H,7,8)(H,9,10);;/q;2*+1/p-2 checkY
    Key: PXEDJBXQKAGXNJ-UHFFFAOYSA-L checkY
  • InChI=1/C5H9NO4.2Na/c6-3(5(9)10)1-2-4(7)8;;/h3H,1-2,6H2,(H,7,8)(H,9,10);;/q;2*+1/p-2
    Key: PXEDJBXQKAGXNJ-NUQVWONBAI
  • C(CC(=O)[O-])C(C(=O)[O-])N.[Na+].[Na+]
  • [Na+].[Na+].O=C([O-])CCC(N)C([O-])=O
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).
☒N verify (what is checkY☒N ?)

Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid.[1] It is used as a flavoring agent to impart umami flavor.

Formation

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

See also

References

  1. ^ "Sodium L-glutamate".
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