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The hydroxyanthracene glycosides are not readily absorbed in the small intestine, but are hydrolyzed by intestinal flora to a form that is partly absorbed in the colon. [citation needed] Some of the chemical constituents present in the bark may be excreted by the kidneys. [26]
Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C 14 H 10, consisting of three fused benzene rings. It is a component of coal tar.Anthracene is used in the production of the red dye alizarin and other dyes, as a Scintillator to detect high energy particles, as production of pharmaceutical drugs.
Hydroxyanthracene derivatives are mainly emodin, chrysophanol and their glycosides. [8] Other hydroxyanthracene derivatives are rhein , aloe emodin and physcion and their glycosides. [ 9 ]
Glycoconjugates are very important compounds in biology and consist of many different categories such as glycoproteins, glycopeptides, peptidoglycans, glycolipids, glycosides, and lipopolysaccharides. They are involved in cell–cell interactions, including cell–cell recognition; in cell–matrix interactions; and in detoxification processes.
In molecular biology, glycoside hydrolase family 88 is a family of glycoside hydrolases. Glycoside hydrolases EC 3.2.1. are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycoside hydrolases, based on ...
1-anthrol, 1-hydroxyanthracene 610-50-4 150 °C 302 °F 2-anthrol, 2-hydroxyanthracene 613-14-9 166 °C 331 °F 9-anthrol, 9-hydroxyanthracene [1] 529-86-2
Like all such substances, rhein is a cathartic, which is commonly found as a glycoside such as rhein-8-glucoside or glucorhein. [2] Rhein was first isolated in 1895. [3] It is found in rhubarb species like Rheum undulatum [4] and Rheum palmatum [5] as well as in Cassia reticulata. [6] Originally the rhubarb plant which contains rhein was used ...