2,2',4,5'-Tetrachlorobiphenyl (49) Back Catalog number: 66049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71056 2-Ethyltoluene Price on request 10632.12-50-T 2,3,4,7,8-Pentabromodibenzofuran Price on request 679302 3-Indoleacetic acid, 250mg Price on request