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CAS number 472-87-7
PubChem 5280866
ChemSpider 4444397
MeSH Dehydroretinal
Jmol-3D images Image 1
Molecular formula C20H26O
Molar mass 282.42 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Dehydroretinal is a derivative (metabolite) of retinal.[1] Known as vitamin A2, it is found in fish liver oils. The liver of freshwater fishes, and some fish found in India, contain a higher ratio of dehydroretinal to retinal than do other breeds.[2]

See also[edit]


  1. ^ a b Gibney, Michael J.; Margetts, Barrie M.; Kearney, John M. et al., eds. (2012), Public Health Nutrition, John Wiley & Sons, p. 210, ISBN 1118574222. 
  2. ^ Food and Agriculture Organization of the United Nations (1967), Requirements of Vitamin A, Thiamine, Riboflavin & Niacin: Report of a Joint Fao-Who Expert Group, United Nations, p. 26, ISBN 9251004536.