2,2',4,5'-Tetrachlorobiphenyl (49) Back Catalog number: 66049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31004 EPA Method 500 Series Internal Standard Price on request 10897.14-K-ME Lidocaine-d10 hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 59798 ICP Tuning Solution Price on request