Ammonia as (NH4+) Back Catalog number: 54212 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9720.12-100MG 1,12-Dodecanedioic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 693-23-2 Price on request 2939.12-100-IO Diquat dibromide-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6385-62-2 Price on request 92794 BTEX Standard Price on request