2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 66128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682440 2-Pyrrolidinone, 1000mg Price on request 96806 Custom Internal Standard Mix Price on request 59572 Fatty Acid Mix, 1000µg/ml in Water, 100ml Price on request