Napropamide, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678444 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 679777 1,2-Dimethoxyethane, 1ml Price on request ISO/DIS9377-4-1 Quality Control Standard, 1000µg/ml in AC, 1ml Price on request 54242 Alkalinity as Calcium Carbonate Price on request