罗氏原料10004642103

NADH, Grade II
disodium salt
Cofactor for a variety of dehydrogenases, e.g., malate dehydrogenase and
lactate dehydrogenase.
Application
Use NADH, Grade II, as a cofactor in a variety of diagnostic tests, such as
for glutamate dehydrogenase, lactate dehydrogenase, α-hydroxybutyrate
dehydrogenase, aminotransferases and urea.
Benefits
Rely on the proven diagnostic quality of this product.
CAS: 58-68-4
Properties
Formula: C 21 H 27 N 7 O 14 P 2 Na 2
Molecular weight: 709.4 D (NADH: 665.4 D)
Specification
Appearance: White to slightly yellowish amorphous powder
Solubility: Clear, colorless to slightly yellowish solution in water (c=50 mg/ml)
NADH-Na 2 (calculated from value found enzymatically, based on dry weight):
≥98%
NADH (enzymatically, A 340 ): ≥84%
NADH (A 340 , ε=6.3 [l x mmol -1 x cm -1 ]): ≥84%
NADH (A 260 , ε=14.3 [l x mmol -1 x cm -1 ]): ≥85%
Na (flame photometric): 6.5±0.5%
Water (K. Fischer): ≤6%
NAD (enzymatically): ≤1%
AMP (enzymatically): ≤0.2%
Ethanol (GC): ≤4%
Reaction rates (LDH) based on standard: 95-105%
A 260 /A 340 : ≤2.40
A 260 /A 240 : 1.57-2.17
Stability: At +2 to +8°C within specification range for 12 months. Keep under
nitrogen. Protect from light.

罗氏原料 10004642103 b-NADH, Reduced, Disodium Salt, Grade II 还原型辅酶 II