N-甲基原卟啉IX是诸如叶绿素，血红素和细胞色素c的修复基团的生物前体的衍生物。N-甲基原卟啉IX被分类为过渡态类似物。原卟啉IX铁螯合酶被N-甲基原卟啉IX（K | i | = 10 nM）有效抑制。N-甲基原卟啉IX在血红素生物合成途径的末端有效地产生了阻断作用。 N-Methyl Protoporphyrin IX is a derivative of a biological precursor to prosthetic groups such as chlorophyll, heme, and cytochrome c. N-Methyl Protoporphyrin IX is classified as a transition state analog. Protoporphyrin IX ferrochelatase is potently inhibited by N-Methyl Protoporphyrin IX (K|i|= 10 nM). N-Methyl Protoporphyrin IX effectively creates a blockade at the terminal step of the heme biosynthetic pathway.