Parathion ethyl

Parathion-ethyl, 100 µg/ml, Cyclohexane, 1ml

1,2,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane

N-Nitrosopiperazine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 5632-47-3