13C6-Hexachlorobenzene, 100 µg/ml, Cyclohexane,

N-Nitrosodiethylamine

4,4'-DDA, 100mg

7,8-Dibromo-1,2,3,4,11,11-hexachloro1,4,4a,5,6,7,8,9,10,10a-decahydro-1,4-methanobenzocyclooctane,50 µg/mL ,toluene,1mL,