the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > containing nitrogen > pteridine (2)
A substituted derivative of pteridine; esp. any of a class of these compounds which occur naturally as insect pigments. Cf. pteridine, n.
A yellow, crystalline, heteroaromatic compound with a bicyclic molecular structure; any substituted derivative of this, many examples of which occur…