Isoniazid, 50mg

2,3,4,5-Tetrachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

D6-Parathion-methyl, 100 µg/ml, Acetonitrile, 1m

2,4,6-Tribromodiphenyl ether, 1.2ml x 50ug/ml, nonane