D4-Ethephon, 5mg

1,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2-Nitroanisole, 1000mg

2,3,4,5,6-Pentachlorotoluene, 1000µg/ml in Acetone, 1ml