1-Naphthyl acetic acid-ethyl ester, 250mg Back Catalog number: 681349 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 93461 Chloramine-T Extech, Inc. Price on request 672906 Permethrin, 250mg Price on request 50756 Spiking Standard #2 Price on request