产地：Roche 货号：10621650001 名称：NAD Grade II, free acid Product Description Absorbance coefficients: 17.6 x 103 l x mol-1 x cm-1 at 260 nm, 5.9 x 103 l x mol-1 x cm-1 at 333 nm (CN complex) Absorbance maximum: 260 nm Stability: Solid: stable at +2 to +8°C, stored dry Molecular weight: Mr = 663.4 Formula: C21H27N7O14P2 pH value in water: approximately 3.0 (50 mg/ ml) solution: 10 mg/ml in aqueous solution, contains at least 99% NAD after 4 weeks at +2 to +8°C Contents Lyophilizate Quality Organic solvents: <0.5% (GC) Purity: 98% β-NAD based on dry weight (enzymatically, CN-complex and absorbance) Absence of contaminants: LDH inhibitors are not detectable
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