5-ethyl-3,7,8,10-tetramethyl-5,10-dihydrobenzo[g]pteridine-2,4(1H,3H)-dione

2,6-二叔丁基苯醌

3,3',5,5'-四叔丁基-4,4'-联苯醌

四叔丁基联苯酚

5-ethyl-3-methyl-1,5-dihydrolumiflavin