3d image of zinc protoporphyrin skeletal formula

zinc protoporphyrin protoporphyrin ix zpp coordination complexes zinc red-purple red blood cells heme iron lead poisoning iron deficiency sickle cell anemia sideroblastic chronic anemia vanadium exposure erythropoietic protoporphyria combined cancer therapies znpp heme oxygenase structural chemistry treatment anti-cancer anticancer anti-tumor substance matter material compound component agent stuff reagent functional group precursor synthesis reaction production molecule molecular formula skeletal structural structure 3d scientific research organic chemical