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