Water-18O, nomalized, 97 at%18O, 1g Back Catalog number: 1179-1 G Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1145-25 ML Pyridine-d5, 99.5 atom%D, 25ml Price on request 1112-1 ML n-Hexane-d14, 99 atom%D, 1ml Price on request 1053-5 ML Chlorobenzene-d5, 99 atom%D, 5ml Price on request