Ammonium as NH3 Back Catalog number: 50797 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2773.5-100-AN Atrazine-desisopropyl, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1007-28-9 Price on request 70347 Dichlone Price on request 31541 Bromomethane, 200µg/ml in MeOH, 1ml Price on request