Names | |
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IUPAC name
Calcium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
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Other names
Calcium diascorbate; Calcium L-ascorbate; Hemicalcium ascorbate; Calci-C; E 302
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Identifiers | |
3D model (
JSmol)
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ChemSpider | |
ECHA InfoCard | 100.126.521 |
E number | E302 (antioxidants, ...) |
PubChem
CID
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UNII | |
CompTox Dashboard (
EPA)
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Properties | |
Ca(C6H7O6)2 | |
Molar mass | 390.310 g·mol−1 |
About 50 g/100 mL [1] | |
Solubility | Slightly soluble in alcohol; insoluble in ether [1] |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
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Calcium ascorbate is a compound with the molecular formula CaC12H14O12. It is the calcium salt of ascorbic acid, one of the mineral ascorbates. It is approximately 10% calcium by mass.
As a food additive, it has the E number E 302. It is approved for use as a food in the EU, [2] USA [3] and Australia and New Zealand. [4]