4,4'-DDE, 100 µg/ml, Toluene, 5ml Back Catalog number: 675841 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 675750 Dicrotophos, 100 µg/ml, Ethyl acetate, 5ml Price on request 71838 2,2’-Dinitrobiphenyl Price on request 50228 Mix #1 Price on request