(2S,2'S)-5,5'-(nonane-1,9-diyldiimino)bis(2-{[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)amino}phenyl)carbonyl]amino}-5-oxopentanoic acid) (non-preferred name)

P0ABQ4 — Dihydrofolate reductase