QUESTION:TEMPO ((2,2,6,6-tetramethylpiperidin-1-yl)oxyl, or (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl),Given that it's a free radical, why doesn't it react with itself, despite being capable of reacting with other radicals in the system itself)?In addition, according to Wikipedia, it's a red-orang