Triazophos, 100 µg/ml, Acetonitrile, 5ml

2,2',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Heptachlor-exo-epoxide (cis-, isomer B), certified, 10mg

Dalapon methyl ester, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 17640-02-7