O,O-Dimethylthiophosphate, sodium salt, 5mg

Pentachlorophenol, 1000mg

2,2',3,3',4',5,6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-70-4

Multi-Element Check Standard