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flavin
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flavin

biology
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Also known as: lyochrome
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Also called:
Lyochrome
Key People:
Paul Karrer

flavin, any of a group of pale-yellow, greenly fluorescent biological pigments (biochromes) widely distributed in small quantities in plant and animal tissues. Flavins are synthesized only by bacteria, yeasts, and green plants; for this reason, animals are dependent on plant sources for them, including riboflavin (vitamin B2), the most prevalent member of the group.