The botanical name of Rubia Cordifolia and it belongs to family rubiaceae. The roots contain resinous and extractive matter, gum, sugar, coloring matter, - the salt of the pigment being a red crystalline principle purpurine. The yellow glucoside manjistin and a xanthine are also present, besides garancin and orange red alizarin. Anthroquinones pentacyclic triterpenes, quinines, cyclic hexapeptides and diethylesters are also reported. Other compounds isolated are xantho-purpurin, glucose, sucrose and ruberythric acid. Alizarin, purpurin, purpurin carbohydrate, quinizarine and christofin isolated from roots.
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