Atrazine, 10.0 µg/ml, Ethyl acetate, 10ml

5-Chloro-2-(2,4-dichloro[13C6]phenoxy)[1,2,3,4,5,6-13C6]anisole, 1.2ml x 50ug/ml, nonane

Heptachlor-exo-epoxide (isomer B), 1.2mL x 100ug/mL, nonane

1-Nitronaphthalene-d7, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 80789-77-1