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 19116 EPA Method 625 Base/Neutrals Mix #3 Price on request 93023 n-Octacosane Price on request 70257 Propazine Price on request