PCB Congeners Back Catalog number: 94990 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678406 Fenamiphos-sulfone, 100 µg/ml, Acetonitrile, 1ml Price on request 71140 Pentafluorophenylhydrazine Price on request 676644 Tamoxifen citrate, 250mg Price on request