Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-26 2,3',5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request PEO-003S 4-tert-Octylphenol, 100µg/ml in MeOH, 1ml Price on request 675248 Proquinazid, 100 µg/ml, Acetonitrile, 5ml Price on request