3-carbonyl-2,2,5,5-tetramethyl-3-pyrroline-1-yloxyl, 3-Carbamoyl-2,2,5,5-tetramethylpyrroline-1-oxyl, 3-carbamoyl-2,2,5,5-tetramethyl-3-pyrrolin-1-oxyl, 3-aminocarbonyl-2,2,5,5-tetramethyl-3-pyrrolin-1-yloxy radical, CARPYR, 3-carbamoyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl, 1-oxyl-2,2,5,5-tetramethyl-3-pyrroline-3-carboxamide, 3-Carbamoyl-2,2,5,5-tetramethylpyrrolinooxyl, CTPO, 2,2,5,5-TetraMethyl-1-oxypyrroline-3-carboxaMide, 2,2,5,5-tetramethyl-3-pyrrolin-1-yloxy-3-carboxamide, CARBAMOYL-2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-YLOXY, 2,2,5,5-TETRAMETHYL-3-CARBAMIDOPYRROLINE-1-OXYL, 3-carbamoyl-2,5-dihydro-2,2,5*5-tetramethyl-1H-py, Pirolin, TeMpyo