|Systematic IUPAC name
L-Ascorbic acid 6-hexadecanoate
3D model (JSmol)
|E number||E304 (antioxidants, ...)|
CompTox Dashboard (EPA)
|Molar mass||414.539 g·mol−1|
|Appearance||White to yellowish colored powder|
|Melting point||116 to 117 °C (241 to 243 °F; 389 to 390 K)|
|Very slightly soluble in water; freely soluble in ethanol|
|Flash point||178.1 °C (352.6 °F; 451.2 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
Ascorbyl palmitate is an ester formed from ascorbic acid and palmitic acid creating a fat-soluble form of vitamin C. In addition to its use as a source of vitamin C, it is also used as an antioxidant food additive (E number E304). It is approved for use as a food additive in the EU, the U.S., Canada, Australia, and New Zealand.
Ascorbyl palmitate is also marketed as "vitamin C ester". It is synthesized by acylation of vitamin C using different acyl donors.
- UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
- US Food and Drug Administration: "Listing of Food Additives Status Part I". Food and Drug Administration. Archived from the original on 2012-01-17. Retrieved 2011-10-27.
- Health Canada: "Chemical Substance - Ascorbyl palmitate". 26 July 2004. Retrieved 2016-08-13.
- Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.
- Karmee SK (January 2009). "Biocatalytic synthesis of ascorbyl esters and their biotechnological applications". Applied Microbiology and Biotechnology. 81 (6 Suppl): 1013–1022. doi:10.1007/s00253-008-1781-y. PMID 19030854. S2CID 35465409.