PCB Congener Mix #5 Back Catalog number: 94983 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H268700 Heptadecafluorooctanesulfonic Acid Potassium Salt, 500mg Price on request M338791 Metoprolol-D7 Hydrochloride, 1mg Price on request 79684 Fipronil Price on request