2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Back Catalog number: 66189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 51112 Benzene and Toluene Calibration Blends Mix#7 Price on request 675514 Bifenazate, 100 µg/ml, Cyclohexane, 5ml Price on request L15620100CY cis-Nonachlor, 10µg/mL in Cyclohexane, 10ml Price on request