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 83541 1,4-Benzoquinone-DNPH (mono) Price on request N-12411-1G Methyl acetate, 1g Price on request XA14610000AL Lenacil, 100µg/mL in Acetonitrile, 1ml Price on request