Parathion-ethyl, 100μg/mL in Acetonitrile, 1ml

2,3,4,5-Tetrachlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 4901-51-3

pH 4.0 Standard @ 25°C, in water, 100ml

Terbufos sulfoxide