2,3,5,6-Tetrachlorobiphenyl (65) Back Catalog number: 66065 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79296 Endosulfan sulphate Price on request 673882 Paraoxon-ethyl, 100 µg/ml, Cyclohexane, 5ml Price on request DF-ST-B Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request