Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 0330.14-K-IO n-Octylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2189-60-8 Price on request X9155 1-Nitrosopiperidine Price on request 11175.7-10MG Theobromine-d3 (1-methyl-d3),neat,neat,10mg Price on request