title: Nitroxide mixed carboxylic-carbonic acid anhydrides. A new class of versatile spin labels.
mesh_terms: D000143:Acids; D000577:Amides; D000812:Anhydrides; D002245:Carbon Dioxide; D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D008239:Lysine; D010455:Peptides; D011108:Polymers
chemical_list: D000143:Acids; D000577:Amides; D000812:Anhydrides; D003497:Cyclic N-Oxides; D010455:Peptides; D011108:Polymers; D002245:Carbon Dioxide; D008239:Lysine