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 10154.7-100-AN 5-Nitro-o-toluidine,100 µg/mL,acetonitrile,1mL, Price on request 676906 D10-Malathion, 100 µg/ml, Acetone, 1ml Price on request 676510 Bilanafos sodium salt, 10mg Price on request