NADH, Grade II
for potassium test, disodium salt
For further processing only.
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NADH, Grade II material number and pack size: Material Number Pack Size 11333925103 custom fill
- NADH quality for enzymatic potassium test.
- Use this special NADH as a cofactor in a diagnostic test for potassium, together with glutamate dehydrogenase to remove ammonia from the reaction mixture.
Molecular weight: 709.4 D (NADH: 665.4 D) Appearance: White to slightly yellowish amorphous powder
Solubility: Clear, colorless to slightly yellowish solution in water (c=50 mg/mL)
NADH-Na2 (from content found enzymatically, based on dry weight): ≥98%
NADH (enzymatic): ≥82%
NADH (A340, ε=6.3 [L x mmol-1 x cm-1]): ≥84%
NADH (A260, ε=14.3 [L x mmol-1 x cm-1]): ≥85%
Na (flame photometric): 6.5±0.5%
K (AAS): ≤250 ppm
Water (K. Fischer): ≤6%
NAD (enzymatic): ≤1%
AMP (enzymatic): ≤0.2%
Ethanol (GC): ≤4%
Reaction rates (Lactate dehydrogenase), based on standard:
Freshly dissolved sample: 95-105%
After 8 days incubation at +45°C: ≥95%
Freshly dissolved sample: ≥96.0 area%
After 8 days incubation at +45°C: ≥75 area%
Stability: At +2 to +8°C within specification range for 12 months.