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

4,4’-Methoxychlor

Arochlor 1254, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11097-69-1

(+/-)-Geosmin-d5,100 µg/mL,MeOH,1mL