Pyrazophos, 10.0 µg/ml, Acetonitrile, 10ml Back Catalog number: 677259 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 673504 Carbophenothion, 100 µg/ml, Ethyl acetate, 5ml Price on request PN-66S 1,2,3,4,6,7-Hexachloronaphthalene, 50µg/ml in nonane, 1,2ml Price on request DF-LCS-A40 Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request