Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 14500-0130-100AN5 Benzo(j)fluoranthene, 100µg/ml in AL, 5ml Price on request 8399.4-10MG Desphenyl chloridazon-15N2, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request 95144 Propazine Price on request