title: Letter: Carbon-13 nuclear magnetic resonance spectra of zinc(II) coproporphyrins. A modus operandi for reproducible measurement of porphyrin spectra.
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D011166:Porphyrins; D015032:Zinc
chemical_list: D011166:Porphyrins; D015032:Zinc