Sodium (Na) Back Catalog number: 57711 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-77 3,3',4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 50450 Custom Metals Standard Price on request 70321 Pentachlorobenzene, 1000ug/ml in MeOH, 1ml Price on request