Chlorophenols Standard Back Catalog number: 92771 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92182 Volatile Standard Price on request 66189 2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Price on request C20003100 PCB No. 31, certified, 25mg Price on request