Rosinidin
Encyclopedia
Rosinidin is an O-methylated anthocyanidin. It is a pigment found in the flowers of Catharanthus roseus
Catharanthus roseus
Catharanthus roseus is a species of Catharanthus native and endemic to Madagascar. Synonyms include Vinca rosea , Ammocallis rosea, and Lochnera rosea; other English names occasionally used include Cape Periwinkle, Rose Periwinkle, Rosy Periwinkle, and "Old-maid".In the wild, it is an endangered...

and, in lower concentration, in Primula rosea.
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