Aurantinidin
Encyclopedia
Aurantinidin is a water soluble, red plant dye. It is a member of the class of compounds known as anthocyanidin
Anthocyanidin
Anthocyanidins are common plant pigments. They are the sugar-free counterparts of anthocyanins based on the flavylium ion or 2-phenylchromenylium, which is a type of oxonium ion . They form a large group of polymethine dye. In particular anthocyanidins are salt derivatives of the...

s and is a hydroxy
Hydroxyl
A hydroxyl is a chemical group containing an oxygen atom covalently bonded with a hydrogen atom. In inorganic chemistry, the hydroxyl group is known as the hydroxide ion, and scientists and reference works generally use these different terms though they refer to the same chemical structure in...

 derivative of pelargonidin
Pelargonidin
Pelargonidin is an anthocyanidin, a type of plant pigment. Like all anthocyanins, it is an antioxidant. It produces a characteristic orange color, and can be found in red geraniums, and ripe raspberries and strawberries, as well as blueberries, blackberries, plums and cranberries and pomegranates....

. Aurantinidin has been reported to occur in Impatients aurantiaca (Balsaminaceae
Balsaminaceae
Balsaminaceae are a family of dicotyledonous plants, comprising two genera and 850+ species, all but one of which belong to the genus Impatiens...

), and also in cultivars from genus Alstroemeria
Alstroemeria
Alstroemeria , commonly called the Peruvian Lily or Lily of the Incas, is a South American genus of about 120 species of flowering plants. Almost all of the species are restricted to one of two distinct centers of diversity, one in central Chile, the other in eastern Brazil...

.
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