3d image of dihydrofolic acid skeletal formula

dihydrofolic acid dihydrofolate dhf folic vitamin b9 derivative tetrahydrofolic dihydrofolate reductase purines pyrimidines dna rna nucleic dh h2folate metabolite metabolism biosynthesis cycle mechanism pathway path catabolism biosynthetic intermediate biogenesis substrate precursor synthesis bioprecursor metabolic enzyme endogenous substance compound reaction molecule molecular formula skeletal structural structure cell biology biochemistry biomolecule bioactive 3d