2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Back Catalog number: 66171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59277 pH 8.0 Standard @ 25°C Price on request 15900-3710-100AN5 Parathion-methyl, 100µg/ml in Acetonitrile, 5ml 52,57 € 31421 Toluene Price on request