Fumaric acid, 250mg

1,2-Dibromo-7,8-dichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

Styrene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 100-42-5

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