Ammonium malate
Ammonium malate refers to organic compounds containing malate and ammonium. Two stoichiometries are discussed: NH4H(C2H3OH(CO2)2) with one ammonium ion per formula unit, and (NH4)2(C2H3OH(CO2)2). Malate, the conjugate base of malic acid, is chiral. Consequently a variety of salts are possible, R vs S vs racemic. The monoammonium salt has been crystallized as the monohydrate.
| Names | |
|---|---|
| IUPAC name
Diammonium malate | |
| Other names
Ammonium hydroxybutanedioate; E349 | |
| Identifiers | |
| ChemSpider | |
| ECHA InfoCard | 100.025.909 |
| EC Number |
|
| E number | E349 (antioxidants, ...) |
PubChem CID |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| Properties | |
| C4H9NO5 | |
| Molar mass | 151.118 g·mol−1 |
| Appearance | white solid |
| Density | 1.498 g/cm3 (monohydrate) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
As a food additive, diammonium malate has been used as flavoring agent and as an acidity regulator. It has the E number E349.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.