15N3-Simazine, 100 µg/ml, Acetonitrile, 1ml

Benzo(a)pyrene, 100µg/ml in Acetonitrile, 1ml

1,4,5-Trichloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane

2,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 3424-82-6