Tags: Chemical Compound, Chemical Substance.
Pterin is a heterocyclic compound composed of a pteridine ring system with a keto group and an amino group on positions 4 and 2 respectively. Several tautomers of pterin exist and are shown below. Derivatives of pterin include pterins and folates.Pterins as a group are compounds that are derivatives of the basic pterin structure described in the beginning with additional functional groups attached to the pyrazine subring.
