Heptachlor, 1000µg/ml in Hexane, 1ml Back Catalog number: 79022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97297 Deuterated PAH Std., 2000µg/ml in MeChl, 1ml Price on request 675390 Propazine, 100 µg/ml, Acetonitrile, 5ml Price on request 674548 Mestranol, 100mg Price on request