(organic compound) Any of a class of organic heterocyclic compounds, composed of fused pyrimidine and imidazole rings, that constitute one of the two groups of organic nitrogenous bases (the other being the pyrimidines) and are components of nucleic acids.
plural of pyrimidine
any of several bases that are derivatives of purine
a colorless crystalline nitrogen-containing organic base; the parent compound of various biologically important substances
a colourless crystalline compound with basic properties, forming uric acid on oxidation.
a substituted derivative of purine, especially the bases adenine and guanine present in DNA.
Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble.