What is Purine?
{{chembox | Watchedfields = changed | verifiedrevid = 464376451 | ImageFile_Ref = {{chemboximage|correct|??}} | ImageFile = Purin num2.svg | ImageSize = 150 | ImageAlt = Skeletal formula with numbering convention | ImageFile1 = Purine-3D-balls.png | ImageSize1 = 160 | ImageAlt1 = Ball-and-stick molecular model | ImageFile2 = Purine-3D-spacefill.png | ImageSize2 = 150 | ImageAlt2 = Space-filling molecular model |IUPACName=9''H''-purine |OtherNames=}} '''Purines''' include two of the [[Base (chemistry)|bases]] in [[DNA]] and [[RNA]]. A purine is a [[cyclic compound|heterocyclic]] [[aromatic hydrocarbon|aromatic]] [[organic compound]]. It is a [[pyrimidine]] ring fused to an [[imidazole]] ring. Purines are the most widely occurring [[nitrogen]]-containing heterocycles in nature.<ref>Rosemeyer H. 2004. ''Chemistry & biodiversity''. ''1'', 361.</ref> Purines and [[pyrimidine]]s are the two groups of nitrogenous bases, and the two groups of [[nucleotide]] bases. == Purines == *[[Adenine]] *[[Guanine]] *Hypoxanthine *Xanthine == References == {{reflist}} {{Alkaloids}} {{Simple aromatic rings}} [[Category:Organonitrogen compounds]] {{chem-stub}}