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 8499.12-100-CY Dapsone Price on request PFAC30PAR Native PFAS Precision and Recovery Standard, 1000ng/ml in MeOH, 1,2ml Price on request 70161 2,6-Dinitrotoluene Price on request