4,4'-DDE, 100mg Back Catalog number: 674983 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 70089 Chlorpropham Price on request 679999 4-Ethyltoluene, 100 µg/ml, Methanol, 1ml Price on request M4PFHPA Perfluoro-n-[1,2,3,4-13C4]heptanoic acid, 1.2ml x 50ug/ml, methanol Price on request