Pesticide Standard

2,3,4,5-Tetrachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

2,2',4,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2437-79-8

4-Chlorophenoxyacetic acid