Heptachlor, 100 µg/ml, Methanol, 1ml Back Catalog number: 679447 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended MA9112 pH 12.45 buffer solution (230mL) Price on request 95630 Volatile Mix Price on request PFHXPA Perfluorohexylphosphonic acid, 50µg/ml in MeOH, 1,2ml Price on request