2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Back Catalog number: 63171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31052 1,2-Dibromoethane Price on request PN-21S 1,3,7-Trichloronaphthalene, 1.2mL x 50ug/mL, nonane Price on request 79414 N,N-Diethylaniline Price on request