Calcium erythorbate

Calcium erythorbate
Names
	IUPAC name Calcium 5-(1,2-dihydroxyethyl)-3-hydroxy-4-oxo-furan-2-olate
	Other names Erythorbic acid, calcium salt; E318
Identifiers
CAS Number	99552-34-8;
3D model (JSmol)	Interactive image;
EC Number	227-261-5;
E number	E318 (antioxidants, ...)
PubChem CID	54737445;
CompTox Dashboard (EPA)	DTXSID40726651 ;
	InChI InChI=1S/2C6H8O6.Ca/c27-1-2(8)5-3(9)4(10)6(11)12-5;/h22,5,7-10H,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
Chemical formula	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

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.

References

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