1-Piperidinyloxy, 2,2,6,6-tetramethyl-4-(trimethylammonio)- 2,2,6,6-Tetramethylpiperidinyl-N-oxyl-4-trimethylammonium 4-(N,N,N-Trimethylamino)-2,2,6,6-tetramethylpiperidine-1-oxyl 4-(Trimethylammonium)-2,2,6,6-tetramethylpiperidine-D(17)-1-oxyl iodide 64486-64-2 TM-Tempamine d-Cat(1)