Benzidine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679880 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 57730 Zinc (Zn) Price on request 8942.8-100-AN Bromophos methyl, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 2104-96-3 Price on request 678439 Malathion, 100 µg/ml, Acetonitrile, 5ml Price on request