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 682607 Cyclohexylamine, 1000mg Price on request 70302 Triphenyl phosphate Price on request 96109 Deuterated PAH Mix Price on request