Calcium ascorbate

Calcium ascorbate

Names
IUPAC name calcium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
Other names Calcium diascorbate; Calcium L-ascorbate; Hemicalcium ascorbate; Calci-C; E 302
Identifiers
CAS Number	5743-27-1
ChemSpider	4445637
Jmol interactive 3D	Image
PubChem	21967
InChI InChI=1S/2C6H8O6.Ca.2H2O/c2*7-1-2(8)5-3(9)4(10)6(11)12-5;;;/h2*2,5,7-8,10-11H,1H2;;2*1H2/q;;+2;;/p-2/t2*2-,5+;;;/m00.../s1 Key: FWGHSAZDJGAESH-FWCDDDAWSA-L InChI=1/2C6H8O6.Ca.2H2O/c2*7-1-2(8)5-3(9)4(10)6(11)12-5;;;/h2*2,5,7-8,10-11H,1H2;;2*1H2/q;;+2;;/p-2/t2*2-,5+;;;/m00.../s1 Key: FWGHSAZDJGAESH-ORZGFQGYBD
SMILES [Ca+2].O=C1C(\O)=C(\[O-])O[C@@H]1[C@@H](O)CO.O=C1C(\O)=C(\[O-])O[C@@H]1[C@@H](O)CO.O.O
Properties
Chemical formula	C12H14CaO12
Molar mass	390.31 g·mol^−1
Solubility in water	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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Infobox references

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 additive in the EU,^[2] USA^[3] and Australia and New Zealand.^[4]

References

1. "Reference Tables: Description and Solubility - C".
2. UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
3. US Food and Drug Administration: "Listing of Food Additives Status Part I". Retrieved 2011-10-27.
4. Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.