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 D480317 3,5-Dinitrosalicylhydrazide-15N2, 1mg Price on request 94573 Volatile Standard Price on request 12160.21-100-ME (±)-trans-11-OH-delta-9-THC, 100µg/ml in MeOH, 1ml Price on request