2,3,3’,4,4’,5’-Hexachlorobiphenyl (157) Back Catalog number: 66157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52145 Method 200.8 / 1638 / 1640 Internal Standard, in 2%-HNO3/Water, 4x25ml Price on request C175398 Cannflavin A, 1mg Price on request 9873.16-50-IO 4,9-Dimethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66291-34-7 Price on request