Structural Biochemistry/Nucleic Acid/Nitrogenous Bases/Purines/Purine
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Purine is a heterocyclic aromatic organic compound. Purine consists of a pyrimidine ring fused to an imidazole ring. Purines and pyrimidines make up of two groups of nitrogenous bases. The name was invented by the German chemist Emil Fischer in 1884. Below are the DNA bases.