Disodium glutamate

Names
IUPAC name

Disodium 2-aminopentanedioate

Other names

DSG

Identifiers

CAS Number

* 142-47-2 Y

3D model (JSmol)

* Interactive image
* Interactive image

ChemSpider |

* 7969883 Y

PubChem CID

* 9794116

UNII |

* C3C196L9FG Y

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-2 Y

Key: PXEDJBXQKAGXNJ-UHFFFAOYSA-L Y

* 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

SMILES

* C(CC(=O)[O-])C(C(=O)[O-])N.[Na+].[Na+]

* [Na+].[Na+].O=C([O-])CCC(N)C([O-])=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 [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

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

* Monosodium glutamate

## References

1. ↑ "Sodium L-glutamate". https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-L-glutamate.

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*[CID]: Compound ID