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 2033.12-50-T 1,2,4-Trichlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 39227-58-2 Price on request 2268.12-100-IO 2,2',3,3',4,4',5,5'-Octachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 35694-08-7 Price on request