Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 675574 Fenamidone, 10 µg/ml, Ethyl acetate, 10ml Price on request 674458 Ethoxyquin HCl, 250mg Price on request 12351.12-100-ME Mono-n-butyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml Price on request