Water-18O (18O>98%)-1g$300.00 Water-18O (18O>98%) Product Catalog # Size Price (USD) Quantity Water-18O (18O>98%)-1g 291808-1G 1 g $300.00 - Water-18O (18O>98%)-1g quantity + For more size options, please click: Water-18O (18O>98%) 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.