Isophthalic acid, bis-methyl ester. 1g

Heptachlor, 100 µg/ml, Ethyl acetate, 1ml

EPA Method 552.1, 552.2 - Haloacetic Acids

1-/3-Nitrobenzo[e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 91259-16-4 / 81340-58-1