Benzidine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679880 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10974.6-100-AN Para-phenylenediamine,100 µg/mL,acetonitrile,1mL, Price on request 58092 Uranium (U) Price on request 94131 EPA Method 507 Analyte Mix #8 Price on request