资料来源 : pyDict

鸟嘌呤

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Guanin \Gua"nin\, n. (Physiol. Chem.)
   A crystalline substance ({C5H5N5O}) contained in guano. It is
   also a constituent of the liver, pancreas, and other glands
   in mammals.