1,2 Benzenedimethinol [methylene-14C]

1,2,3,4,7,8-Hexachlorobenzo-p-dioxin tetrachlorophenyl [ring-14C(U)]

1,2,3,4,7-Pentachlorodibenzo-p-dioxin tetrachlorophenyl [ring-14C(U)]

1,2,3-Triazole [5-14C]

1,2,3-Trichlorobenzene [ring-14C(U)]

1,2,4,5-Tetrachlorobenzene [14C(U)]

1,2,4-Triazole [5-14C]

3 mercapto-14-1,2,4-triazole

1,2,4-Trichlorobenzene [ring-14C(U)]

1,2-Dichloro-4-iodobenzene [ring-14C(U)]

1,2-Dichloro-4-nitrobenzene [14C(U)]

1,2-Dichlorobenzene [14C(U)]

1,2-Dichloroethane [1,2-14C]

1,2-Dichloroethylene, cis, trans-[1,2-14C]

DHPC [methyl-14C]

1,2-Dioctanyl [1-14C] rac-glycerol

Diolein [14C(U)]

1,2-Phenylene diamine [14C(U)]

PC L-a-diarachidonyl [diarachidonyl-11-14C]

1,2-Propanediol dinitrate [1-14C]