2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 63128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52046 Calibration Standard Mix 4 Price on request 38242 RCRA OrganoNitrogen Pesticides Price on request 93750 Sucrose Level 3 Price on request