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Anthraquinones: Occurring mostly as glycosides
anthraquinones are brown to yellow pigments traditionally used as fabric dyes.
In experiments it was concluded that Anthraquinones pass
through the digestive tract unaltered until they get to the colon where they are
converted to Dianthones which are then turned into anthrone which has a laxative
effect increasing peristaltic action and inhibiting the absorption of water by
the colon.
Anthraquinones are pale yellow thin prisms that are
insoluble in water and has caused tumours in rats that have ingested it.
Anthraquinone can cause skin irritation, dermatitis and
allergic reactions if applied to the skin.
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