Synonyms: OXYL-1-NHS;1h-pyrrol-1-yloxy,3-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-2,5-dihydro-2,2,;5-tetramethyl-;1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER;2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER;3-[[(2,5-Dioxo-1-pyrrolidinyl)oxy]carbonyl]-2,5-dihydro-2,2,5,5-tetramethyl-1H-Pyrrol-1-yloxy;NSC 319633;Tempyo Ester