Calcium erythorbate

Calcium erythorbate is a food additive. Chemically, it is the calcium salt of erythorbic acid, with the chemical formula Ca(C6H7O6)2. As an antioxidant structurally related to vitamin C, it helps improve flavor stability and prevents the formation of carcinogenic nitrosamines.

Calcium erythorbate
Names
Preferred IUPAC name
Calcium bis{(2R)-2-[(1R)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate}
Other names
Erythorbic acid, calcium salt; E318
Identifiers
3D model (JSmol)
EC Number
  • 227-261-5
E number E318 (antioxidants, ...)
PubChem CID
  • InChI=1S/2C6H8O6.Ca/c2*7-1-2(8)5-3(9)4(10)6(11)12-5;/h2*2,5,7-10H,1H2;/q;;+2/p-2
    Key: BLORRZQTHNGFTI-UHFFFAOYSA-L
SMILES
  • OC1=C([O-])[C@]([C@H](O)CO)([H])OC1=O.OC1=C([O-])[C@]([C@H](O)CO)([H])OC1=O.[Ca+2]
Properties
Ca(C6H7O6)2
Molar mass 390.31 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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