Prallethrin, 100 µg/ml, Acetonitrile, 5ml

n-Nonanal,neat,neat,100mg,

1,2,3,7,8,9-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2,4-Dichloronitrobenzene