EPA Method 527 Surrogate Standard

1-n-Hexyl-2-phenylbenzimidazole, neat, Solvent-neat, Unit 10MG, # of units-32, Cas.no. 476298-71-2

Bensulfuron-methyl, 10.0 µg/ml, Acetonitrile, 10

3-n-Propylcarbazole, Please inquire, Solvent-, Unit , # of units-, Cas.no.