2,3,3’,4,4’,5’-Hexachlorobiphenyl (157) Back Catalog number: 66157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52337 Mixed Calibration Standard 3 Price on request 674442 2,3,5-Trimethacarb, 10.0 µg/ml, Acetonitrile, 10 Price on request 673635 Methamidophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request