3,5-二叔丁基邻苯醌

N,N'-bis(3,5-ditert-butyl-2-hydroxyphenyl)oxamide

4,6-ditert-butyl-2,1,3-benzothiadiazole

2,4,6,8-tetratert-butylphenoxazin-1-one

1-hydroxy-2,4,6,8-tetrakis(t-butyl)-phenoxazin-10-yl radical