Proquinazid, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 675248 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 10443.25-10MG Irganox 1520 Price on request 677477 Triphenylmethane, 250mg Price on request 675426 Simazine, 250mg Price on request