Maeda A, Schichida Y, Yoshizawa T
J Biochem. 1978 Mar;83(3):661-3. doi: 10.1093/oxfordjournals.jbchem.a131957.
7-cis Retinal, one of the geometrical isomers of retinal, was prepared by the direct irradiation of all-trans retinal dissolved in ethanol and successive separation by high performance liquid chromatography. The production for its purification and identification are described.