品名:NADPH Tetrasodium salt
Product Description
Absorbance coefficients: 15.0 x 103 l x mol-1 x cm-1 at 260 nm, 6.3 x 103 l x mol-1 x cm-1 at 340 nm
Absorbance maxima: 260 nm and 340 nm
Formula: C21H26N7O17P3Na4
Molecular weight: NADPH-Na4: Mr = 833.4, NADPH: Mr = 745.4
pH value in water: 8.0 ± 1.0 (10 mg/ml)
Stability:
Solid: stable at +2 to +8°C, stored dry and protected from light
Solution: 10 mg/ml in Na-bicarbonate buffer, pH 9, contains at least 95% NADPH after 4 weeks at +2 to +8°C
Contents
Amorphous powder bottled under nitrogen
Quality
Purity:≥79% β-NADPH-Na4 based on dry weight (enzymatically and absorbance at 340 nm), ≥ 80% (absorbance at 260 nm)
Organic solvents:≤3% (GC)