cis-Nonachlor, 100 µg/ml, Cyclohexane, 1ml Back Catalog number: 681543 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 684223 N-Nitrosodiethylamine, 100 µg/ml, Methanol, 5ml Price on request 71959 3-Nitro-o-toluidine Price on request 673647 Paraoxon-ethyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request