Water-18O (18O>97%)-1g$250.00 Water-18O (18O>97%) Product Catalog # Size Price (USD) Quantity Water-18O (18O>97%)-1g 291807-1G 1 g $250.00 - Water-18O (18O>97%)-1g quantity + For more size options, please click: Water-18O (18O>97%) Add to cart Additional information Additional information Weight 0.001 kg Size 1 g For Research & Development use only. Not for testing and/or use on humans.