1-羟基-2,2,6,6-四甲基哌啶-4-基3,3-双((3aS,8aR)-3a,8a-二氢-8H-茚并[1,2-d]噁唑-2-基 )丁酸酯（自由基），97%

1-Hydroxy-2,2,6,6-tetramethylpiperidin-4-yl 3,3-bis((3aS,8aR)-3a,8a-dihydro-8H-indeno[1,2-d]oxazol-2-yl)butanoate (free radical)