Carbon (C)

1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin , 1.2ml x 50ug/ml, nonane

Spirotetramat

2,2',3,4',5,5',6-Heptachloro-4-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene