4,4'-DDT (ring-13C12), 100ug/ml in n-Nonane, 1,2ml

Dichlorprop D6 (ring D3, 3,3,3-D3), 100 ng/µl, 1.1ml

Chrysene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1719-03-5

D-Neopterin-13C5, 1mg