3d image of protoporphyrinogen ix skeletal formula

protoporphyrinogen ix hemoglobin chlorophyll protoporphyrin precursor porphyrinogen non-aromatic hexahydroporphine core coproporphyrinogen iii oxidase 3d metabolite metabolism biosynthesis cycle mechanism pathway path biosynthetic intermediate biogenesis substrate synthesis derivative bioprecursor metabolic enzyme endogenous contractor molecule molecular formula skeletal structural structure geometry ball stick cell biology biochemistry biomolecule bioactive biochemical herbal phytochemical plant natural