2,2',4,5'-Tetrachlorobiphenyl (49) Back Catalog number: 66049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96534 Triazolam Price on request S-4513-100-5T Deuterated EPA PAH-mix, See S-solutions pricelist, Solvent-, Unit , # of units-, Cas.no. Price on request 71083 Ethylene glycol Price on request