pteridine(redirected from Pteridines)
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Azinepurine; benzotetrazine; pyrazino[2,3-d]pyrimidine; a two-ring heterocyclic compound found as a component of pteroic acid and the pteroylglutamic acids (folic acids, pteropterin, etc.); simple pteridine derivatives (for example, xanthopterin, leucopterin) occur as pigments in butterfly wings, whence the name.
1. A yellow crystalline compound, C6H4N2, having two fused six-member aromatic rings each containing two nitrogen atoms and four carbon atoms. One of the rings is a pyrimidine; the other is a pyrazine.
2. Any of a group of organic compounds derived from this compound, including folic acid and the pigments of butterfly wings.