2,3,4,4',5,6-Hexachlorobiphenyl (166) Back Catalog number: 66166 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72288 D-Xylose Price on request 38117 93 Octane Gasoline as TPH in Soil Price on request 675497 Nitrapyrin, 100mg Price on request