A major electron acceptor Specifications Nicotinamide adenine dinucleotide Reagent Grade Purity: >97.0% A_max(pH 7.0): 259 nm Moisture: <4.0% A250/A260: 0.83+/-0.05 A280/A260: 0.22+/-0.05 Appearance: Solid RTECS Number: UU3450000