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

Monobenzyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

Iprodione-d5 (3,5-dichlorophenyl-2,4,6-d3,hydrantoin-5,5-d2, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1215631-57-4

4,4'-DDT-13C12