Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BDF-2378 2,3,7,8-Tetrabromodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 52002 Nitric Acid Blank Price on request 50229 Mix #1 Price on request