The molecule is a pyridinium ion obtained by formal condensation between two molecules of retinol and one the amino group of ethanolamine. A major constituent of retinal pigment epithelium lipofuscin It is a retinoid and a pyridinium ion.
2-[2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohexen-1-yl)octa-1,3,5,7-tetraenyl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohexen-1-yl)hexa-1,3,5-trienyl]pyridin-1-ium-1-yl]ethanol