Silicon (Si) Back Catalog number: 58114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11740.12-100-IO 2,2',3,4,4',6'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 66185 PCB No. 185, 100ug/ml in Isooctane, 1ml Price on request MBP-70 2,3',4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request