Ammonium (NH4+) Back Catalog number: 50184 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14963.12-50-ME Perfluorododecanesulfonic acid, 50µg/ml in MeOH, 1ml Price on request 32811 n-Octane Price on request 678500 Quizalofop, 100 µg/ml, Acetonitrile, 1ml Price on request