NADPH Tetrasodium salt Roche

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: M_r = 833.4, NADPH: M_r = 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

Amorphous powder bottled under nitrogen

Purity:≥79% β-NADPH-Na₄ based on dry weight (enzymatically and absorbance at 340 nm), ≥ 80% (absorbance at 260 nm)
Organic solvents:≤3% (GC)