EPA Method 551.1 Internal Standard

4-Chloroaniline, 100 µg/ml, Acetonitrile, 5ml

Ditalimfos, 100 µg/ml, Ethyl acetate, 5ml

4-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 26207-06-7