beta-Endosulfan, 100 µg/ml, Acetonitrile, 5ml

2,3,7,8-Tetrachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,

2,5-Dimethylpyrazine, Research grade, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 123-32-0

Allethrin, 100 µg/ml, Acetonitrile, 5ml