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 59112 Metals Mix Price on request 0234.48-10MG Dicoronylene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 98570-53-7 Price on request 674707 Non-Buffered Mix Price on request