Ascorbyl palmitate

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Ascorbyl palmitate
Ascorbyl palmitate.png
IUPAC name
[(2S)-2-[(2R)-4,5-Dihydroxy-3-oxo-2-furyl]-2-hydroxy-ethyl] hexadecanoate
Other names
Ascorbyl palmitate
L-Ascorbic acid 6-hexadecanoate
6-O-Palmitoylascorbic acid
3D model (JSmol)
Abbreviations E304
ECHA InfoCard 100.004.824
E number E304 (antioxidants, ...)
Molar mass 414.533 g/mol
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).
YesY verify (what is YesYN ?)
Infobox references

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,[1] the U.S.,[2] Canada,[3] Australia, and New Zealand.[4]

Ascorbyl palmitate is known to be broken down (through the digestive process) into ascorbic acid and palmitic acid (a saturated fatty acid) before being absorbed into the bloodstream.[5] Ascorbyl palmitate is also marketed as "vitamin C ester".

See also[edit]


  1. ^ UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27. 
  2. ^ US Food and Drug Administration: "Listing of Food Additives Status Part I". Archived from the original on 2012-01-17. Retrieved 2011-10-27. 
  3. ^ Health Canada: "Chemical Substance - Ascorbyl palmitate". Retrieved 2016-08-13. 
  4. ^ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27. 
  5. ^ DeRitter E.; Cohen, N; Rubin, SH (1951). "Physiologic availability of dehydro-L-ascorbic acid and palmitoyl-L-ascorbic acid". Science. 113 (2944): 628–631. PMID 14845692. doi:10.1126/science.113.2944.628. 

External links[edit]