Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 10ml

Caffeine,100 µg/mL,MeOH,1mL,

Metribuzin-desamino-desmethyl, 10mg

4,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 72-55-9