产品说明书:

Product Description ：

Absorbance coefficients: 14.3 x 10 3 l x mol -1 x cm -1 at 260 nm, 6.18 x 10 3 l x mol -1 x cm -1 at Hg 334 nm, 6.3 x 10 3 l x mol -1 x cm -1 at 340 nm, 3.4 x 10 3 l x mol -1 x cm -1 at Hg 365 nm

Absorbance maximum: 260 nm and 340 nm

Formula: C 21 H 27 N 7 O 14 P 2 Na 2

Molecular weight: NADH-Na 2 : M r = 709.4, NADH: M r = 665.4

pH value in water: 7.5 ± 0.5 (100 mg/ml)

Stability:

Solid: stable at +2 to +8°C, stored dry and protected from light

Solution: 10 mg/ml in Na-bicarbonate buffer, pH9, contains at least 95% NADH after 4 weeks at +2 to +8°C

Contents ：

Amorphous powder

Quality ：

Purity: 100% β-NADH-Na 2 based on dry weight (enzymatically and absorbance), A 260nm - A 340nm : <2.35

Contaminants: Relative reaction with LDH: 1.00 ± 0.05 (referred to a standard)

Organic solvents: <4% (GC)