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biological significance of pteridine compounds (from Greek
pteron, “wing”) has become apparent since the first known
members of the group were discovered as pigments of butterfly
wings. One example is the yellow pigment 2-amino-4,6-
pteridinedione (xanthopterin). relation to pyrazine Other
members of the pyrazine family are pteridines, alloxazines, and
phenazines. Certain pigments, first isolated from butterfly
wings in 1891, are pteridines, as are the folic acids, which
participate in a variety of essential chemical reactions in the
body. Riboflavin (vitamin B2), a growth-promoting factor, is an
alloxazine compound. Among the large group of phenazine dyes,
the... What made you want to look up "pteridine"? Please share
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