1-{5-[(3S)-3-carboxy-4-fluoro-3-hydroxybutanoyl]-7,8-dimethyl-2,4-dioxo-1,3,4,5-tetrahydrobenzo[g]pteridin-10(2H)-yl}-1-deoxy-5-O-phosphono-D-ribitol

O52792 — 4-hydroxymandelate oxidase