Demeton-O, 25mg

b-1,2,3,4,5,6-Hexachloro(13C6)cyclohexane, 1.2mL x 100ug/mL, nonane

4-Bromofluorobenzene, 250mg

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