Ammonium (NH4+) Back Catalog number: 54533 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2680.6-K-IO 2,3-Dimethylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 632-16-6 Price on request 0041.18-10MG 5-Nitrobenzo[c]phenanthrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 64356-30-5 Price on request 2022.8-500UL 4-Fluoro-o-xylene, neat, Solvent-neat, Unit 0,5mL, # of units-1, Cas.no. 452-64-2 Price on request