Phenthoate, 100 µg/ml, Methanol, 1ml

1,2,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Streptomycin sulfate, 250mg

Decabromo[13C12]biphenyl, 50µg/ml in Nonane/50% toluene, 1,2ml