4,4'-DDE, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678380 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 81403 Chlorpyrifos, 1000µg/ml in Hexane 1ml Price on request 54166 UV 254 Absorbance / DOC Price on request 72220 Nordoxepin Price on request