2,4-Dinitroaniline, 250mg

2,4-D 2-ethylhexyl ester, certified, 100mg

CLP Pesticide Lab Control Standard

2,3,3',4-Tetrahlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 74338-24-2