title: Identification of N-methylprotoporphyrin IX in livers of untreated mice and mice treated with 3, 5-diethoxycarbonyl- 1, 4-dihydrocollidine: source of the methyl group.
mesh_terms: D000818:Animals; D002250:Carbon Radioisotopes; D003997:Dicarbethoxydihydrocollidine / Q000378:metabolism*; D008099:Liver / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D011166:Porphyrins / Q000096:biosynthesis*; D011524:Protoporphyrins / Q000096:biosynthesis* / Q000302:isolation & purification; D011725:Pyridines / Q000378:metabolism*; D013053:Spectrophotometry
chemical_list: D002250:Carbon Radioisotopes; D011166:Porphyrins; D011524:Protoporphyrins; D011725:Pyridines; D003997:Dicarbethoxydihydrocollidine; C028842:N-methylprotoporphyrin IX