purine molecular structure isolated grey |
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| navigate by keyword : acid adenine atomic atoms background base bond carbon chemical chemistry composition compound dna formula grey hydrogen illustration medicine model molecular molecule nitrogen nucleic nucleobase nucleoside purine rna science scientific structural structure |
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| Purine is a heterocyclic aromatic organic compound that consists of a pyrimidine ring fused to an imidazole ring. Purine gives its name to the wider class of molecules, purines. 3d illustration |
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