C20H28O

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Retinal \Ret"i*nal\, n. (Chem.)
     A retinoid compound ({C20H28O}), closely related to vitamin
     A, which is a component of the visual pigments in the eye. It
     is also called {retinaldehyde} and {vitamin A aldehyde}.
     [PJC]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  vitamin A2 \vitamin A2\ n.
     dehydroretinol ({C20H28O}), one of the substances also called
     {vitamin A}. It has about 40% of the bioactivity of vitamin
     A1.
  
     Syn: dehydroretinol.
          [WordNet 1.5 +PJC]