Organophosphorus Pesticide Standard Back Catalog number: 94515 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79811 Esfenvalerate, 1000µg/ml in Acetonitrile, 1ml Price on request 672909 beta-Cyfluthrin, 250mg Price on request 70198 Hexachlorocyclopentadiene Price on request