Heptachlor Back Catalog number: 79300 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-12367-S 1,2,3,6,7-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request S-4049-005-10ME Methanol QC Reference mixture V Trimethylamine, 50 ppb (weight by weight), in methanol; Unit: 10x10mL Price on request 96549 Methaqualone Price on request