has role is protonated form of riboflavin 7,8-dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)benzo[g]pteridine-2,4(3H,10H)-dione 1-deoxy-1-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-D-ribitol 5-deoxy-5-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-D-ribitol riboflavinum CHEBI:15044 lactoflavin CHEBI:529204 Bisulase 1-deoxy-1-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-D-ribitol <small>D</small>-Ribitol in which the hydroxy group at position 5 is substituted by a 7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[<em>g</em>]pteridin-10(2<em>H</em>)-yl moiety. It is a nutritional factor found in milk, eggs, malted barley, liver, kidney, heart, and leafy vegetables, but the richest natural source is yeast. The free form occurs only in the retina of the eye, in whey, and in urine; its principal forms in tissues and cells are as flavin mononucleotide and flavin-adenine dinucleotide. Aqua-Flave Beflavine riboflavin vitamin G 6,7-dimethyl-9-D-ribitylisoalloxazine vitasan B2 vitamin B2 7,8-dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)isoalloxazine CHEBI:45214 Flavin Bb Flaxain Vitamin B2 riboflavin (vit B2) Hyflavin riboflavine riboflavina Flavaxin CHEBI:8843 Fiboflavin 7,8-dimethyl-10-ribitylisoalloxazine 7,8-dimethyl-10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-2,4(3H,10H)-dione Beflavin Dermadram E101 CHEBI:27299 1-deoxy-1-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)pentitol vitamin B2 antioxidant cofactor flavin photosensitizing agent riboflavin(1-) anti-inflammatory agent mouse metabolite plant metabolite Escherichia coli metabolite food colouring fundamental metabolite human urinary metabolite