Butafenacil, 10 µg/ml, Ethyl acetate, 10ml

EPA Method 507 Surrogate Standard

N-Nitrosonornicotine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 808508-23-2

1-(4-Chlorophenyl)urea, 100mg