Xanthine riboside; 9-beta-D-Ribofuranosylxanthine
3D model (JSmol)
|Molar mass||284.228 g·mol−1|
|Melting point||Decomposes when heated|
|Sparingly soluble in cold water; freely soluble in hot water|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Xanthosine is a nucleoside derived from xanthine and ribose. It is the biosynthetic precursor to 7-methylxanthosine by the action of 7-methylxanthosine synthase. 7-Methylxanthosine in turn is the precursor to theobromine (active alkaloid in chocolate), which in turn is the precursor to caffeine, the alkaloid in coffee and tea.
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