Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 2124.12-K-IOX5 Arochlor 1016 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 12674-11-2 Price on request 677479 Pyrimethamine, 250mg Price on request 680416 Glycine, 250mg Price on request