2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Back Catalog number: 66177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95823 Deuterated Arylamine Mix Price on request 676570 Metconazole, 100mg Price on request 73580 Ethyl vanillin Price on request