Description
Use NAD, Grade II as a cofactor in a variety of diagnostic tests, such as for the determination of ethanol and lactate dehydrogenase.SpecifificationAppearance: Colorless to slightly yellowish lyophilizateSolubility: Clear, colorless to slightly yellowish solution in water (c=200 mg/ ml)β-NAD (from value found enzymatically, based on dry weight): ≥97.5%β-NAD (enzymatically, A340): ≥94.5%β-NAD (A260, ε=17.6 [l x mmol-1 x cm-1]): ≥94.5%NAD (HPLC): ≥95 area%Water (K. Fischer): ≤3.5%Fe (AA): ≤25 ppmAMP (enzymatically): ≤0.1%Ethanol (GC): ≤40 ppmAceton, isopropanol, methanol (GC): ≤0.1%, ≤0.15%, ≤0.15%Reaction rates (LDH) based on NAD II, acid: 95-105%A250/A260: 0.81-0.85A280/A260: 0.20-0.24