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 674515 PSA-C18-Mix 2 Price on request 1160.40-100-IO n-Tetracontane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4181-95-7 Price on request C14101000 Heptachlor-exo-epoxide (cis-, isomer B), certified, 10mg Price on request