Chrysophanic

Chrys`o`phan´ic

Pertaining to, or derived from, or resembling, chrysophane.

Chrysophanic acid
(Chem.) a yellow crystalline substance extracted from rhubarb, yellow dock, sienna, chrysarobin, etc., and shown to be a derivative of an anthracene. It is used in the treatment of skin diseases; - called also rhein, rheic acid, rhubarbarin, etc.

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