EPA Method 525 Pesticide Standard Sub Conc Back Catalog number: 98307 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678427 Heptachlor-exo-epoxide, 100 µg/ml, Acetonitrile, Price on request 674315 (-)-Nicotine, 500mg Price on request 675504 Fenamiphos-sulfoxide, 10 µg/ml, Acetonitrile, 10 Price on request