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4-Hydroxy-TEMPO or TEMPOL, formally 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl, is a heterocyclic compound. Like the related TEMPO, it is used as a catalyst and chemical oxidant by virtue of being a stable radical.
H 1717 (OTTO) 4-Hydroxy-tempo, 98%+ Cas 2226-96-2 - used as a catalyst and a chemical oxidant by virtue of being a stable radical.