Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 3382.12-100-CY Dioxathion Price on request 71185 n-Hexatriacontane Price on request 0353.19-K-IO 9-Phenylfluorene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 789-24-2 Price on request