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  Key: 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-2 Key: PXEDJBXQKAGXNJ-NUQVWONBAI
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SMILES 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). |
| | |
Disodium glutamate, abbreviated DSG, (Na2C5H7NO4) is a sodium salt of glutamic acid. It 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
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