Ammonia as (NH4+) Back Catalog number: 50629 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8823.8-10MG 2,4,5,6-Tetrachloro-m-xylene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request 9427.5-100MG Hexachlorocyclopentadiene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 77-47-4 Price on request 681729 Crotoxyphos, 10.0 µg/ml, Isooctane, 10ml Price on request