特異性：Lyophilized or crystallized sodium salt. The free acid or other salt forms are available upon request. Equal concentrations of ara-2'-F-NAD+ can appear very different in volume due to sensitivity of the lyophilized form to humidity. The compoundcan even contract to small volume droplets. Normally the product is located in the conical bottom of the tube. Micromolar quantities aredetermined by UV at lambda max .
純度：Typical analysis is better than 97% (HPLC / UV / 260 nm). The product is not sterile and has not been tested for endotoxins.
