2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71295 Chlorodifluoromethane Price on request 80153 EPA Method 8015B - Extraction Analytes Price on request 51109 Benzene and Toluene Calibration Blends Mix#4 Price on request