trans-Heptachlor epoxide, 50mg

3,9-Dimethylbenz[a]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 316-51-8

Mercury (Hg)

Benzo(b)fluoranthene, 10μg/ml in Cyclohexane, 10ml