2,6-DIMETHYLHYDROQUINONE

2,6-DINITROTOLUENE-4-SULFONIC ACID

2,6-DI-TERT-BUTYL-4-(DIMETHYLAMINOMETHYL)PHENOL

2,6-Ditert-butyl-p-benzoquinone-3-methyl-4-azine-2-benzothiazolinone

2,7-Diaminofluorene dihydrochloride

2,7-Dihydroxynaphthalene

4,7-DIMETHYLPYRAZOLO(1,5-A)PYRIMIDINE-3-CARBOXYLIC ACID

2,8-BIS(TRIFLUOROMETHYL)-4-BROMOQUINOLINE