Pyrethrins, 10 µg/ml, Ethyl acetate, 10ml

GC-IRMS Standards (C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.

Fenthion-sulfoxide, 100µg/ml in Cyclohexane, 5ml

2,2’,3,5,6,6’-Hexachlorobiphenyl