Perchlorate Level 5 Back Catalog number: 59343 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CL-PFHXPA 6-Chloroperfluorohexylphosphonic acid, 1.2ml x 50ug/ml, methanol Price on request 676426 Thiadone (Flufenacet Metabolite), 10.0 µg/ml, Ace Price on request 70604 Cypermethrin, 1000µg/ml in Acetonitrile, 1ml Price on request