High Quality Content by WIKIPEDIA articles! Sodium 2-anthraquinonesulfonate (AMS) is a water-soluble anthraquinone derivative. AMS is used as a catalyst in production of alkaline pulping in the soda process. It goes through a redox cycle similar to that of anthraquinone to give a catalytic effect. AMS was discovered as an efficient pulping catalyst before anthraquinone, but has a higher cost. Anthraquinone, also called anthracenedione or dioxoanthracene is an aromatic organic compound with formula C14H8O2, that can be viewed as a diketone derivative of anthracene. The term usually refers to one specific isomer, 9,10-anthraquinone or 9,10-dioxoanthracene, whose ketone groups are on the central ring. This compound is an important member of the quinone family.

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