Purine

Uncommon card · No. 130226

Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. They are the most widely occurring nitrogen-containing heterocycles in nature. In nucleic acids, two types of nucleobases are purine derivatives: adenine (A) and guanine (G).

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