PCB 28, 10.0 µg/ml, Isooctane, 10ml Back Catalog number: 680572 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 0029.22-5MG Pentaphene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 222-93-5 Price on request 673216 Butoxycarboxim, 10.0 µg/ml, Acetonitrile, 10ml Price on request 97056 Organic Acids Mix #2 Price on request