SEARCH Articles Figures Tables 1.6- Naphthyridines, covalent hydration nitro-, ultraviolet spectra Covalent hydrates Covalent hydration of naphthyridines Hydrated spectrum Hydration spectra Naphthyridines, covalent hydration Nitro ultraviolet spectra Nitro-1,5 naphthyridines Of naphthyridines