Heptachlor Back Catalog number: 79167 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 52001 HCI Acid Blank Price on request 11223.10-100-AN Bentazon-d7 (isopropyl-d7),100 µg/mL,acetonitrile,1mL, Price on request 93109 Aroclor 1260 Price on request