Ammonium as NH3 Back Catalog number: 50797 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2479.16-K-IO Di-n-butyl phthalate-3,4,5,6-d4,1000 µg/mL,isooctane,1mL, Price on request 66014 PCB No. 14, 100µg/ml in Isooctane, 1ml Price on request 1749.16-K-IO 3-n-Dodecylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104934-52-3 Price on request