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Calcium ascorbate

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Calcium ascorbate is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Calcium ascorbate (Wikipedia)

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.

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
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.126.521 Edit this at Wikidata
E number E302 (antioxidants, ...)
UNII
  • 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 checkY
    Key: FWGHSAZDJGAESH-FWCDDDAWSA-L checkY
  • 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
  • [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
Ca(C6H7O6)2
Molar mass 390.310 g·mol−1
About 50 g/100 mL
Solubility Slightly soluble in alcohol; insoluble in ether
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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As a food additive, it has the E number E 302. It is approved for use as a food in the EU, USA and Australia and New Zealand.

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