Any of a class of organic compounds, pale yellow biological pigments that fluoresce green. They occur in compounds essential to life as coenzymes in metabolism. Plants and microbes can synthesize them, but animals must consume them in the diet. Riboflavin is the best-known flavin.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on flavin, visit Britannica.com.
Seen & Heard
What made you look up flavin? Please tell us what you were reading, watching or discussing that led you here.