Behenic acid, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 680597 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-D Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 70833 Siduron Price on request 676558 Menaquinone-7, 5mg Price on request