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 71507 2,3-Dimethylphenol Price on request 11358.8-10MG N-Methyl-N-nitrosobenzylamine,neat,neat,10mg, Price on request 683306 Trifluoroacetic acid, 1ml Price on request