Sodium fumarate
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| Sodium fumarate | |
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| IUPAC name | Disodium (E)-but-2-enedioate |
| Other names | Disodium fumarate |
| Identifiers | |
| CAS number | [7704-73-6] |
| PubChem | |
| SMILES | C(=CC(=O)[O-])C(=O)[O-].[Na+].[Na+] |
| Properties | |
| Molecular formula | C4H2Na2O4 |
| Molar mass | 160.04 g/mol |
| Appearance | White powder |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Sodium fumarate, also called disodium fumarate, is a compound with the molecular formula Na2C4H2O4. It is the sodium salt of fumaric acid, used as an acidity regulator in processed foods. Sodium fumarate and fumaric acid are sometimes used as terminal electron acceptors in the cultivation of certain anaerobic microorganisms. It appears as an odourless, white, crystalline powder and is soluble in water.
As a food additive, it has the E number E365.
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