2,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml Back Catalog number: 673536 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended SC-251527 1-Naphthalenesulfonic acid, 25g Price on request 682104 Diisobutyl phthalate, 100 µg/ml, Acetone, 5ml Price on request 94753 3,3’-Dichlorobenzidine Price on request