14116-99-5 17879-89-9 7-Hydroxy-8-(1-D-ribityl)lumazine 7-Oxolumazine D-Ribitol, 1-deoxy-1-(1,3,4,7-tetrahydro-6-methyl-2,4,7-trioxo-8(2H)-pteridinyl)- Photolumazine C