Ürik asit başta olmak üzere pürin cisimciklerinin ana unsurunu oluşturan kompleks yapıda azotlu bileşik, pürin (Nükleoprotein metabolizmasının son ürünü olarak meydana gelir)
A nitrogen-containing, double-ring, basic compound that occurs in nucleic acids The purines in DNA and RNA are adenine and guanine Source : Human Genome Project Information
a colorless crystalline nitrogen-containing organic base; the parent compound of various biologically important substances any of several bases that are derivatives of purine
Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms. The simplest member, purine itself (C5H4N4), is not common, but its derivatives with the structure are. Examples are uric acid, caffeine, and two of the nucleotides in nucleic acids, guanine and adenine