Tetradifon, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678510 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended AHCH a-1,2,3,4,5,6-Hexachlorocyclohexane, 1.2mL x 100ug/mL, nonane Price on request MHPCHLOR (13C10)Heptachlor, 1.2mL x 100ug/mL, nonane Price on request 59337 pH 9.0 Standard @ 25°C Price on request