Ammonium (NH4+) Back Catalog number: 54256 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50131 ICP-MS Mix Price on request 1125.20-K-IO 1,3-Diphenylbenzo[c]thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16587-39-6 Price on request 73374 Thebaine Price on request