Aurantinidin(6- hydroxypelargonidine) IUPAC name:2-(4-hydroxyphenyl)chromenylium-3,5,6,7-tetrol Aurantinidin is a water soluble, red plant dye, CAS N 25041-66-1[1]. Aurantidin has been reported to occur in Impatients aurantiaca(Balsaminacea), and also in cultivars from genus Alstroemeria [^[1]]

1 http://www.economy-point.org/a/aurantinidin.html 2 FLAVONOIDS Chemistry,biochemistry and applications, Oyvind M.Andersen,Kenneth R.Markham