Pesticides standard

Perfluorohexane sulfonic acid, potassium salt,neat,neat,1g,

trans-4'-(3,4-Difluorophenyl)bicyclohexyl-4-one, >98%, 1g

Arochlor 1242 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 53469-21-9