Biphenyl, 100 µg/ml, Cyclohexane, 5ml Back Catalog number: 674050 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DD-28-S 2,8-Dichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 72031 Theophylline Price on request 678273 Chlorbromuron, 100 µg/ml, Acetonitrile, 5ml Price on request