Ammonia as (NH4+) Back Catalog number: 50630 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L20030100IO PCB-Mix 1, 10 ng/µl, 10ml Price on request 2705.2-90-ME Dimethylamine, 90µg/mL, Solvent-TMA-free methanol, Unit 1mL, # of units-1, Cas.no. 124-40-3 Price on request 70471 Perylene, 1000µg/ml in methylene chloride, 1ml Price on request