4,4'-DDD, 100 µg/ml, Methanol, 1ml Back Catalog number: 679457 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 56161 Hexavalent Chromium (Cr 6+) Price on request 673665 Phosphamidon, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 18000-1465-100AN5 Ofloxacin, 100µg/ml in Acetonitrile, 5ml Price on request