2,6-Dimethylnaphthalene, 50 µg/mL in Toluene, 1ml

Heptachlor endo-epoxide, 100µg/ml, Acetonitrile, 5ml

Olefins - ASTM 1319

2,2',3,4,4',5,5'-Heptachloro-3'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane