title: Formation of 7-cis retinal by the direct irradiation of all-trans retinal.
abstract: 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.
mesh_terms: D000818:Animals; D001059:Apoproteins; D002417:Cattle; D002851:Chromatography, High Pressure Liquid; D008027:Light; D008968:Molecular Conformation / Q000528:radiation effects; D012172:Retinaldehyde / Q000302:isolation & purification / Q000528:radiation effects*; D012243:Rhodopsin; D013057:Spectrum Analysis; D013237:Stereoisomerism; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D001059:Apoproteins; D014801:Vitamin A; D012243:Rhodopsin; D012172:Retinaldehyde