Benzidine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679880 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1039.18-200-T 2,7-Dimethylpyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 15679-24-0 Price on request 71647 n-Tetratetracontane Price on request 677284 1-Hydroxyibuprofen, 10mg Price on request