Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 672814 Atrazine, 250mg Price on request 70279 Tetrachloroethene Price on request 73212 Methanesulfonamide Price on request