title: High-resolution electron spin resonance studies of hyperfine inter actions in substituted 1,4-naphthoquinones and naphthazarins.
mesh_terms: D004447:Echinodermata; D004578:Electron Spin Resonance Spectroscopy; D009285:Naphthoquinones / Q000032:analysis*; D010860:Pigments, Biological / Q000032:analysis*
chemical_list: D009285:Naphthoquinones; D010860:Pigments, Biological