Definitions for: Xanthin






Webster (1913) Definition: Xan"thin, n. [Gr. xanqo`s yellow.]
1. (Physiol. Chem.) A crystalline nitrogenous body closely
related to both uric acid and hypoxanthin, present in
muscle tissue, and occasionally found in the urine and in
some urinary calculi. It is also present in guano. So
called from the yellow color of certain of its salts
(nitrates).

2. (Chem.) A yellow insoluble coloring matter extracted from
yellow flowers; specifically, the coloring matter of
madder. [Formerly written also xanthein.]

3. (Chem.) One of the gaseous or volatile decomposition
products of the xanthates, and probably identical with
carbon disulphide. [Obs.]

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