2,3,3',4,4',5'-Hexachlorobiphenyl, 5mg Back Catalog number: C-157N Availability: In the manufacturer's stock Price on request - + Recommended 15424.6-100MG Hexanoic-d11 acid, 100mg Price on request 59516 Hexavalent Chromium (Cr 6+) Price on request C14101000 Heptachlor-exo-epoxide (cis-, isomer B), certified, 10mg Price on request