title: Spectroscopic models related to coenzymes and base pairs. I. The basis for hypochromism in the ultraviolet spectra of model systems related to nicotinamide--adenine dinucleotide.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008956:Models, Chemical; D009243:NAD; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
chemical_list: D009243:NAD