Tetrathiaporphyrine: A Novel Natural Product from <i>Allium</i> Subgenus <i>Melanocrommyum</i>

A novel purple-red pigment from the plant genus of Allium (onions, leeks), subgenus Melanocrommyum (drumstick onions), is described. Because this pigment, which reminds blood, some species are used in Southwest and Central Asia as herbal medications, spices or vegetables. proposal for formation structure provided, first example a tetrathiaporphyrin nature. The described substance shows low stability towards thermal stress, light oxidant; additionally, its symmetric nature made structural elucidation challenge. It could be shown that, contrary to previous reports, red that tetrathiaporphyrin. Full was only possible by X-ray crystallography total synthesis intended molecule. Further on, newly discovered modification nanoparticles monitoring polymerization events using SPR.