2,2',3,4',5',6-Hexachlorobiphenyl (149) Back Catalog number: 66149 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676980 D5-Norfloxacin, 100 µg/ml, Acetonitrile, 1ml Price on request 52140 EPA 1620 Standard 2 Price on request 97910 Diquat Price on request