Benzidine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679880 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended C16058000 1,4-Phenylendiamine, 100mg Price on request 73566 Bis(2,3,3,3-tetrachloropropyl) ether Price on request 98859 Formaldehyde-DNPH Level 2 (0.5ug/mL) Price on request