2,2',3,4,4',5-Hexachlorobiphenyl (137) Back Catalog number: 66137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54003 Hexamethylenetetramine, ACS Price on request 71207 Anilazine Price on request 679265 Methylparaben, 100mg Price on request