Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 79350 Propionaldehyde Price on request 20142 GPC Calibration Solution Price on request XA14170000ME Hexachloro-1,3-butadiene, 100µg/mL in MeOH, 1ml Price on request