beta-HCH, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678423 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 66004 2,2'-Dichlorobiphenyl (4) Price on request 673526 Chlorpyrifos, 100 µg/ml, Ethyl acetate, 5ml Price on request 71658 2-Methylanisole Price on request