2,2',3,4',5,6,6'-Heptachlorobiphenyl (188) Back Catalog number: 63188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71154 2-Butoxyethanol Price on request 97146 Freon 113 & MTBE High Conc Price on request 31461 1,1,2-Trichloroethane Price on request