英文别名PTIO; 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl; 4,5-Dihydro-4,4,5,5-tetramethyl-2-phenyl-1H-imidazol-1-yloxy-1-oxide; 2-PHENYL-4,4,5,5-TETRAMETHYLIMIDAZOLINE-1-OXYL-3-OXIDE; 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxy 3-oxide radical; 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl-3-N-oxide; 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-oxide; 4,4,5,5-tetramethyl-2-phenyl-4,5-dihydro-1H-imidazole-1-oxyl 3-oxide; 2-phenyl-4,4,5,5-tetramethyl-2,5-dihydro-1H-imidazol-1-oxyl 3-N-oxide; 4,4,5,5-tetramethyl-2-phenyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl; 4,5-Dihydro-4,4,5,5-tetramethyl-3-oxido-2-phenyl-1H-Imidazol-1-yloxy; 2-Phenyl-4,4,5,5-tetramethylimidazoline 3-oxide 1-oxyl; (4,4,5,5-Tetramethyl-3-oxido-2-phenyl-4,5-dihydro-1H-imidazol-1-yl)oxidanyl 
