flavin Chem.
(ˈfleɪvɪn)
Also flavine.
[f. L. flāv-us yellow + -in.]
1. A yellow dye-stuff prepared from quercitron bark.
| 1853 Napier Art Dyeing 344 Flavine. 1864 Watts Dict. Chem. II. 655 Flavin. 1886 Encycl. Brit. XX. 175/2 From 100 parts of quercitron about 85 of flavin are obtained, having a tinctorial power more than twice that of the original bark. |
2. Biochem. [ad. G. flavine (R. Kuhn et al. 1933, in Ber. d. Deut. Chem. Ges. LXVI. B. 320).] Any of the derivatives of isoalloxazine, many of which are important biologically, esp. the cofactors flavin mononucleotide and flavin adenine dinucleotide. (See riboflavin.)
| 1933 Chem. Abstr. XXVII. 2167 A water-sol. nitrogenous pigment having a yellow-green fluorescence can be isolated from natural sources of vitamin B2... The group name flavin is proposed. 1967 J. P. Lambooy in R. C. Elderfield Heterocyclic Compounds IX. ii. 174 Since the majority of the flavins possess polyhydric side chains, there are some unique reactions which such functional groups undergo. |