Benzidine Back Catalog number: 94737 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8623.44-10MG meso-Tetraphenylporphyrine, , Solvent-, Unit , # of units-, Cas.no. 20998-75-8 Price on request 18000-0300-100AN5 Cyclamic acid sodium, 100µg/ml in Acetonitrile, 5m Price on request 682461 2,5-Dichlorophenol, 1000mg Price on request