| pteridine | 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 (e.g., xanthopterin, leucopterin) occur as pigments in butterfly wings, whence the name. (05 Mar 2000) |
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