Ascorbyl stearate (C24H42O7) is an ester formed from ascorbic acid and stearic acid. In addition to its use as a source of vitamin C, it is used as an antioxidant food additive in margarine (E number E305). The USDA limits its use to 0.02% individually or in conjunction with other antioxidants.
Names | |
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IUPAC name
L-threo-Hex-2-enono-1,4-lactone 6-octadecanoate
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Systematic IUPAC name
(2S)-2-[(2R)-3,4-Dihydroxy-5-oxo-2,5-dihydrofuran-2-yl]-2-hydroxyethyl octadecanoate | |
Other names
E305
L-Ascorbic acid, 6-octadecanoate Ascorbyl monooctadecanoate | |
Identifiers | |
3D model (JSmol)
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ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.031.107 |
EC Number |
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E number | E305 (antioxidants, ...) |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C24H42O7 | |
Molar mass | 442.593 g·mol−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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See also
editReferences
edit- Burdock, George A (1996). Encyclopedia of Food & Color Additives. CRC Press. p. 213. ISBN 0-8493-9412-0.
- Lewis, Richard J (1989). Food Additives Handbook. Springer. p. 70. ISBN 0-442-20508-2.