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Disodium glutamate

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Disodium glutamate
Names
IUPAC name Disodium 2-aminopentanedioate
Other names DSG
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
PubChem CID
UNII
InChI
  • 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-2Key: PXEDJBXQKAGXNJ-UHFFFAOYSA-L
  • 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-2Key: PXEDJBXQKAGXNJ-NUQVWONBAI
SMILES
  • C(CC(=O))C(C(=O))N..
  • ..O=C()CCC(N)C()=O
Properties
Chemical 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
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 , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid. 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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