Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 50647 Sodium arsenate dibasic heptahydrate (As) Price on request 3370.7-100 Dichlobenil, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1194-65-6 Price on request 10446.7-10MG Trigonelline hydroiodide Price on request