anthraquinone

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Related to Anthroquinone: anthraquinone glycosides

anthraquinone

[‚an·thrə·kwi′nōn]
(organic chemistry)
C6H4(CO)2C6H4 Yellow crystalline diketone that is insoluble in water; used in the manufacture of dyes.
References in periodicals archive ?
Test group Chloroform extract Ethanol extract Alkaloid + + Protein and amino acids + - Carbohydrates + + Cardiac glycosides + + Anthroquinone glycosides + + Tannin and Phenolic compound + + Steroids and sterols + - Saponins - - Flavonoids - - Test group Methanol extract Aqueous extract Alkaloid + + Protein and amino acids + + Carbohydrates + + Cardiac glycosides + + Anthroquinone glycosides + + Tannin and Phenolic compound + - Steroids and sterols - + Saponins - + Flavonoids - + (Key: '+' = Present, '-' = Absent).
Cyanogenetic glycosides, saponins, alkaloids and steroidal aglycone were next (+) while tannins, anthroquinone and flavonoid were entirely absent.
However from the phytochemical analysis of this plant extract, some of these secondary metabolites were absent (tannins anthroquinone and flavonoid), some in low and moderate concentrations and a few in high concentration.