xanthopterin
Xanthopterin is a yellow pigment belonging to the pteridine family, a class of heterocyclic compounds. It occurs naturally in some organisms and is best known for contributing to yellow coloration in certain insect tissues, particularly in wing scales of some butterflies and moths. It has also been detected in other insect tissues, including eyes, where pteridine pigments can influence coloration and signaling.
Biosynthesis and chemistry of xanthopterin are linked to the pteridine biosynthetic pathway, which builds the pteridine
In research, xanthopterin is often cited as a representative pteridine pigment for understanding pigment formation, transport,