PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11686.12-100-IO 2,2',3,6-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 96388 Thiacloprid Price on request 71412 Tetraethyllead Price on request