Metformin hydrochloride, 250mg Back Catalog number: 676327 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 52036 Calibration Standard Mix 4 Price on request 673735 Atrazine, 100 µg/ml, Ethyl acetate, 5ml Price on request 33881 Benzal chloride Price on request