2,2’,3,4,4’,5’-Hexachlorobiphenyl (138) Back Catalog number: 66138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676926 4,4'-Diaminodiphenylmethane, 250mg Price on request C10247000 4-tert-Amylphenol, certified, 0.25g Price on request 71483 3-Methylindole Price on request