[(2~{S},3~{R},4~{R})-5-[8-methanoyl-7-methyl-2,4-bis(oxidanylidene)-1~{H}-benzo[g]pteridin-10-ium-10-yl]-2,3,4-tris(oxidanyl)pentyl] dihydrogen phosphate

K4REZ6 — 8-demethyl-8-aminoriboflavin-5'-phosphate synthase