Benzo(a)pyrene, 100µg/ml in Acetonitrile, 1ml Back Catalog number: XA20635000AL Availability: In the manufacturer's stock Price on request - + Recommended 2777.10-100-AN Heptachlor-endo-epoxide (trans-) Price on request ES-5353 Toxaphene Congeners (Parlar 26, 50 and 62), 2µg/ml in Nonane, 1,2ml Price on request 682154 D3-Metribuzin, 100 µg/ml, Acetonitrile, 1ml Price on request