6,7-Dimethyl-8-ribityllumazine
6,7-Dimethyl-8-ribityllumazine is a direct biosynthetic precursor of Riboflavin (RBF; HY-B0456). 6,7-Dimethyl-8-ribityllumazine is a noncovalently bound fluorophore of Lumazine protein (LumP), which is a fluorescent accessory protein.