Norfloxacin dihydrate

Florence, A.J. and Kennedy, A.R. and Shankland, N. and Wright, E. and Al-Rubayi, A. (2000) Norfloxacin dihydrate. Acta Crystallographica Section C: Crystal Structure Communications, 56 (11). pp. 1372-1373. ISSN 0108-2701

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Abstract

The antibiotic norfloxacin recrystallizes from aceto­nitrile as a dihydrate with the norfloxacin mol­ecule in a zwitterionic form, i.e. 1-ethyl-6-fluoro-1,4-di­hydro-4-oxo-7-(1-piperazin-4-io)-3-quinoline­carboxyl­ate dihydrate, C16­H18­F­N3­O3·­2H2O.