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 58214 Silicon (Si) Price on request 94596 Volatile Standard Price on request PFAC-MXA Native PFCAs and PFSAs Solution/Mixture, 1.2ml, methanol Price on request