title: Biosynthesis of porphyrins and related macrocycles. Part VII. Synthesis of specifically labelled (14 C1) uroporphyrin-III and of (10,14-13C2)-uroporphyrin-III. Conversion of the latter into (10,14-13C2)protoporphyrin-ix; Biosynthetic significance of its 13C nuclear magnetic resonance spectrum.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007553:Isotope Labeling; D009682:Magnetic Resonance Spectroscopy; D011166:Porphyrins / Q000096:biosynthesis*; D011524:Protoporphyrins / Q000096:biosynthesis*; D014578:Uroporphyrins / Q000096:biosynthesis*
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins; D014578:Uroporphyrins