Hexachlorobenzene, 100 µg/ml, Methanol, 5ml Back Catalog number: 675498 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 83551 Isobutyraldehyde-DNPH Price on request 682718 2,6-Diisopropylnaphthalene, 250mg Price on request 673649 Paraoxon-methyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request