2,3,3',4'-Tetrachlorobiphenyl (56) Back Catalog number: 63056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681582 Chloroacetic Acid, 250mg Price on request 11089.7-100MG 4-Ethylpyridine,neat,neat,100mg, Price on request 70107 Di-n-octyl phthalate Price on request