UltraPure Molecular Biology Grade Water is suitable for all molecular biology applications. The product is certified for the absence of nucleases (DNase and RNase), proteases and endotoxins (<0.01units/ml). The product is made sterile by filtering through 0.1-µm membrane and autoclaving. The resistivity of the water is 18.2. It is the best water in the market which is prepared by MilliQ, treated with ultraviolet light, sterile filtered and autoclaved. The water is packed in clean room environment.