Heptachlor, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 678426 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 680494 PSA-Mix 9 Price on request 677562 L-Histidine hydrochloride monohydrate, 250mg Price on request 680614 Dibutyl maleate, 250mg Price on request