2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97658 Dow 624B Volatile Internal/Surrogate Standard Price on request 1278.16-5MG 2-Nitrofluoranthene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 13177-29-2 Price on request 11675.12-100-IO 2,3,6-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request