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 96531 Prazepam Price on request 16130CS05 Extended Calibration/Low Level Solution ((CS1)/2) , 500uL, nonane Price on request 96718 6-Methylchrysene Price on request