NAD, Grade II
free acid
For further processing only.
| collapse
-
Will be supplied as "b-Nicotinamide-adenine Dinucleotide, II". Unit of measure is "kg".
NAD, Grade II material number and pack size: Material Number Pack Size 10004626103 custom fill - Cofactor for dehydrogenases, e.g., lactate dehydrogenase.
- Use NAD, Grade II as a cofactor in a variety of diagnostic tests, such as for the determination of ethanol and lactate dehydrogenase.
-
Formula: C21H27N7O14P2
Molecular weight: 663.4 D Appearance: Colorless to slightly yellowish lyophilizate
Solubility: 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 (enzymatic, A340): ≥94.5%
NAD (A260, ε=17.6 [L x mmol-1 x cm-1]): ≥94.5%
NAD (HPLC): ≥95 area%
Water (K. Fischer): ≤3.5%
Fe (AAS): ≤25 ppm
AMP (enzymatic): ≤0.1%
Ethanol (GC): ≤40 ppm
Aceton, isopropanol, methanol (GC): ≤0.1%, ≤0.15%, ≤0.15%
Reaction rates (LDH) based on NAD II, acid: 95-105%
A250/A260: 0.81-0.85
A280/A260: 0.20-0.24
Stability: At +2 to +8°C within specification range for 12 months. Store dry.