2,3,3',4,4',5’,6-Heptachlorobiphenyl Back Catalog number: 63191 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32005 EPA Method 502/524 Fortification Solution Price on request 9658.12-100-ME 2,3',4,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 32598-10-0 Price on request 682025 Difenzoquat methyl sulfate, 250mg Price on request