Acetochlor ESA sodium salt

3,4-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66291-31-4

Benzobicyclon, 100 µg/ml, Acetonitrile, 1ml

EPA Method 552 Surrogate Standard Methyl Ester