13C4-Fipronil, 100 µg/ml, Acetonitrile, 1ml

2-(4-Carboxyphenyl)-1H-benzimidazole, neat, Solvent-neat, Unit 10MG, # of units-20, Cas.no. 66631-29-6

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

Durene, 1000mg