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 72344 1-(2,3-Dichlorophenyl)urea Price on request 680572 PCB 28, 10.0 µg/ml, Isooctane, 10ml Price on request 63060 2,3,4,4'-Tetrachlorobiphenyl (60) Price on request