Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673792 Dioxathion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 672913 Chlorimuron-ethyl, 100mg Price on request 98848 4,4’-DDE Price on request