alpha-HCH, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678422 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 96770 PAH Standard Price on request 92712 BTEX Standard Price on request 678531 Chlorpyrifos-methyl, 10 µg/ml, Acetone, 10ml Price on request