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 M1650000 Methyl parahydroxybenzoate, 150mg Price on request 72450 Chlorimuron ethyl Price on request 96518 Clonazepam Price on request