title: Fourier transform carbon-13 NMR spectra of ampyrone and aminopyrine.
abstract: The natural abundance 13C-NMR spectra of ampyrone and aminopyrine were obtained using the pulse Fourier transform technique. The chemical shifts were assigned with the help of the chemical shift theory, multiplicity generated in single-frequency off-resonance decoupled spectra, relaxation time, and comparison with structurally related compounds.
mesh_terms: D000632:Aminopyrine / Q000032:analysis*; D000983:Antipyrine / Q000031:analogs & derivatives* / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy
chemical_list: D000632:Aminopyrine; D000983:Antipyrine