2-Butanone

1-(4-Isopropylphenyl)urea, 100 µg/ml, Acetonitrile, 1ml

1,2,3,4,6,7,9-Heptachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Fenchlorphos, 10 µg/mL in Cyclohexane, 10ml