Synonyms: 4-HYDROXYIMINOMETHYL-2,2,5,5-TETRAMETHYL-3-IMIDAZOLINE-3-OXIDE-1-OXYL;4-HYDROXYIMINOMETHYL-2,2,5,5-TETRAMETHYL-3-IMIDAZOLINE-3-OXIDE-1-OXYL, FREE RADICAL;4-Hydroxyiminomethyl-2,2,5,5-tetramethyl-3-imidazoline-3-oxide-1-oxylfreerad;4-HYDROXYIMINOMETHYL-2,2,5,5-TETRAMETHYL-3-IMIDAZOLINE-3-OXIDE-1-OXYL FREE RAD 98%;4-Hydroxyiminomethyl-2,2,5,5-tetramethyl-3-imidazoline-3-oxide-1-oxyl, 98%, free rad